English

Español

Português

Français

Deutsch

Italiano

Русский

中文(简体)

한국어

日本語

Tiếng Việt

עברית

العربية

Popular Trigonometria >

solvefor x,f=arctan(x/(sqrt(1-x^2)))

Solução

resolver para

x, f = arctan (\frac{x}{1 - x ^{2}})

Solução

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}

Passos da solução

f = arctan (\frac{x}{1 - x ^{2}})

Trocar lados

arctan (\frac{x}{1 - x ^{2}}) = f

Aplique as propriedades trigonométricas inversas

arctan (\frac{x}{1 - x ^{2}}) = f

arctan (x) = a \Rightarrow x = tan (a)

\frac{x}{1 - x ^{2}} = tan (f)

\frac{x}{1 - x ^{2}} = tan (f)

Resolver

\frac{x}{1 - x ^{2}} = tan (f) : x = \frac{tan ( f )}{1 + tan ^{2} ( f )}

\frac{x}{1 - x ^{2}} = tan (f)

Multiplicar ambos os lados por

1 - x^{2}

\frac{x}{1 - x ^{2}} 1 - x^{2} = tan (f) 1 - x^{2}

Simplificar

x = tan (f) 1 - x^{2}

Elevar ambos os lados ao quadrado :

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f)

x = tan (f) 1 - x^{2}

x^{2} = (tan (f) 1 - x^{2})^{2}

Expandir

(tan (f) 1 - x^{2})^{2} : tan^{2} (f) - x^{2} tan^{2} (f)

(tan (f) 1 - x^{2})^{2}

Aplicar as propriedades dos expoentes:

(a \cdot b)^{n} = a^{n} b^{n}

= tan^{2} (f) (1 - x^{2})^{2}

(1 - x^{2})^{2} : 1 - x^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= ((1 - x^{2})^{\frac{1}{2}})^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 - x^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 - x^{2}

= tan^{2} (f) (1 - x^{2})

Expandir

(1 - x^{2}) tan^{2} (f) : tan^{2} (f) - x^{2} tan^{2} (f)

(1 - x^{2}) tan^{2} (f)

= tan^{2} (f) (1 - x^{2})

Colocar os parênteses utilizando:

a (b - c) = ab - a c

a = tan^{2} (f), b = 1, c = x^{2}

= tan^{2} (f) \cdot 1 - tan^{2} (f) x^{2}

= 1 \cdot tan^{2} (f) - x^{2} tan^{2} (f)

Multiplicar:

1 \cdot tan^{2} (f) = tan^{2} (f)

= tan^{2} (f) - x^{2} tan^{2} (f)

= tan^{2} (f) - x^{2} tan^{2} (f)

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f)

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f)

Resolver

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f) : x = \frac{tan ( f )}{1 + tan ^{2} ( f )}, x = - \frac{tan ( f )}{1 + tan ^{2} ( f )}

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f)

Mova

x^{2} tan^{2} (f)

para o lado esquerdo

x^{2} = tan^{2} (f) - x^{2} tan^{2} (f)

Adicionar

x^{2} tan^{2} (f)

a ambos os lados

x^{2} + x^{2} tan^{2} (f) = tan^{2} (f) - x^{2} tan^{2} (f) + x^{2} tan^{2} (f)

Simplificar

x^{2} + x^{2} tan^{2} (f) = tan^{2} (f)

x^{2} + x^{2} tan^{2} (f) = tan^{2} (f)

Fatorar

x^{2} + x^{2} tan^{2} (f) : x^{2} (1 + tan^{2} (f))

x^{2} + x^{2} tan^{2} (f)

Fatorar o termo comum

x^{2}

= x^{2} (1 + tan^{2} (f))

x^{2} (1 + tan^{2} (f)) = tan^{2} (f)

Dividir ambos os lados por

1 + tan^{2} (f)

x^{2} (1 + tan^{2} (f)) = tan^{2} (f)

Dividir ambos os lados por

1 + tan^{2} (f)

\frac{x ^{2} ( 1 + tan ^{2} ( f ) )}{1 + tan ^{2} ( f )} = \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Simplificar

x^{2} = \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

x^{2} = \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Para

x^{2} = f (a)

as soluções são

x = f (a), - f (a)

x = \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}, x = - \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Simplificar

\frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )} : \frac{tan ( f )}{1 + tan ^{2} ( f )}

\frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Aplicar a seguinte propriedade dos radicais:

n \frac{a}{b} = \frac{n a}{n b},

assumindo que

a \geq 0, b \geq 0

= \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Aplicar a seguinte propriedade dos radicais:

n a^{n} = a,

assumindo que

a \geq 0

tan^{2} (f) = tan (f)

= \frac{tan ( f )}{1 + tan ^{2} ( f )}

Simplificar

- \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )} : - \frac{tan ( f )}{1 + tan ^{2} ( f )}

- \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Simplificar

\frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )} : \frac{tan ( f )}{1 + tan ^{2} ( f )}

\frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Aplicar a seguinte propriedade dos radicais:

n \frac{a}{b} = \frac{n a}{n b},

assumindo que

a \geq 0, b \geq 0

= \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Aplicar a seguinte propriedade dos radicais:

n a^{n} = a,

assumindo que

a \geq 0

tan^{2} (f) = tan (f)

= \frac{tan ( f )}{1 + tan ^{2} ( f )}

= - \frac{tan ( f )}{tan ^{2} ( f ) + 1}

= - \frac{tan ( f )}{1 + tan ^{2} ( f )}

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}, x = - \frac{tan ( f )}{1 + tan ^{2} ( f )}

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}, x = - \frac{tan ( f )}{1 + tan ^{2} ( f )}

Verifique soluções:

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}

Verdadeiro

, x = - \frac{tan ( f )}{1 + tan ^{2} ( f )}

Falso

Verificar as soluções inserindo-as em

\frac{x}{1 - x ^{2}} = tan (f)

Eliminar aquelas que não estejam de acordo com a equação.

Inserir

x = \frac{tan ( f )}{1 + tan ^{2} ( f )} :

Verdadeiro

\frac{( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} )}{1 - ( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}} = tan (f)

Simplificar

\frac{( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} )}{1 - ( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}} : tan (f)

\frac{\frac{t a n ( f )}{1 + t a n ^{2} ( f )}}{1 - ( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}}

Aplicar as propriedades das frações:

\frac{\frac{b}{c}}{a} = \frac{b}{c \cdot a}

= \frac{tan ( f )}{1 + tan ^{2} ( f ) 1 - ( \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}}

1 - (\frac{tan ( f )}{1 + tan ^{2} ( f )})^{2} = \frac{1}{1 + tan ^{2} ( f )}

1 - (\frac{tan ( f )}{1 + tan ^{2} ( f )})^{2}

(\frac{tan ( f )}{1 + tan ^{2} ( f )})^{2} = \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

(\frac{tan ( f )}{1 + tan ^{2} ( f )})^{2}

Aplicar as propriedades dos expoentes:

(\frac{a}{b})^{c} = \frac{a ^{c}}{b ^{c}}

= \frac{tan ^{2} ( f )}{( 1 + tan ^{2} ( f ) ) ^{2}}

(1 + tan^{2} (f))^{2} : 1 + tan^{2} (f)

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= ((1 + tan^{2} (f))^{\frac{1}{2}})^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 + tan^{2} (f))^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 + tan^{2} (f)

= \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

= 1 - \frac{tan ^{2} ( f )}{tan ^{2} ( f ) + 1}

Simplificar

1 - \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

em uma fração:

\frac{1}{1 + tan ^{2} ( f )}

1 - \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Converter para fração:

1 = \frac{1 ( 1 + tan ^{2} ( f ) )}{1 + tan ^{2} ( f )}

= \frac{1 \cdot ( 1 + tan ^{2} ( f ) )}{1 + tan ^{2} ( f )} - \frac{tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Já que os denominadores são iguais, combinar as frações:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{1 \cdot ( 1 + tan ^{2} ( f ) ) - tan ^{2} ( f )}{1 + tan ^{2} ( f )}

1 \cdot (1 + tan^{2} (f)) - tan^{2} (f) = 1

1 \cdot (1 + tan^{2} (f)) - tan^{2} (f)

1 \cdot (1 + tan^{2} (f)) = 1 + tan^{2} (f)

1 \cdot (1 + tan^{2} (f))

Multiplicar:

1 \cdot (1 + tan^{2} (f)) = (1 + tan^{2} (f))

= 1 + tan^{2} (f)

Remover os parênteses:

(a) = a

= 1 + tan^{2} (f)

= 1 + tan^{2} (f) - tan^{2} (f)

Somar elementos similares:

tan^{2} (f) - tan^{2} (f) = 0

= 1

= \frac{1}{1 + tan ^{2} ( f )}

= \frac{1}{1 + tan ^{2} ( f )}

Aplicar a seguinte propriedade dos radicais:

n \frac{a}{b} = \frac{n a}{n b},

assumindo que

a \geq 0, b \geq 0

= \frac{1}{1 + tan ^{2} ( f )}

Aplicar a regra

1 = 1

= \frac{1}{1 + tan ^{2} ( f )}

= \frac{tan ( f )}{\frac{1}{t a n ^{2} ( f ) + 1} tan ^{2} ( f ) + 1}

Multiplicar

1 + tan^{2} (f) \frac{1}{1 + tan ^{2} ( f )} : 1

1 + tan^{2} (f) \frac{1}{1 + tan ^{2} ( f )}

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 1 + tan ^{2} ( f )}{1 + tan ^{2} ( f )}

Eliminar o fator comum:

1 + tan^{2} (f)

= 1

= \frac{tan ( f )}{1}

Aplicar a regra

\frac{a}{1} = a

= tan (f)

tan (f) = tan (f)

Verdadeiro

Inserir

x = - \frac{tan ( f )}{1 + tan ^{2} ( f )} : \frac{- \frac{t a n ( f )}{1 + t a n ^{2} ( f )}}{1 - ( - \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}} = tan (f) \Rightarrow

Falso

\frac{( - \frac{t a n ( f )}{1 + t a n ^{2} ( f )} )}{1 - ( - \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}} = tan (f)

Usando o método de substituição

\frac{- \frac{t a n ( f )}{1 + t a n ^{2} ( f )}}{1 - ( - \frac{t a n ( f )}{1 + t a n ^{2} ( f )} ) ^{2}} = tan (f)

Sea:

tan (f) = u

\frac{- \frac{u}{1 + u ^{2}}}{1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} = u

\frac{- \frac{u}{1 + u ^{2}}}{1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} = u :

Verdadeiro para todo

u

\frac{- \frac{u}{1 + u ^{2}}}{1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} = u

Multiplicar ambos os lados por

1 - (\frac{u}{1 + u ^{2}})^{2}

\frac{- \frac{u}{1 + u ^{2}}}{1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} 1 - (\frac{u}{1 + u ^{2}})^{2} = u 1 - (\frac{u}{1 + u ^{2}})^{2}

Simplificar

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} = u 1 - (\frac{u}{1 + u ^{2}})^{2}

Elevar ambos os lados ao quadrado :

\frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}}

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}} = u 1 - (\frac{u}{1 + u ^{2}})^{2}

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2} = u 1 - (\frac{u}{1 + u ^{2}})^{2}^{2}

Expandir

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2} : \frac{u ^{2}}{1 + u ^{2}}

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2}

Aplicar as propriedades dos expoentes:

(- a)^{n} = a^{n},

n

é par

- \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2} = \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2}

= \frac{1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u}{1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2}}^{2}

Aplicar as propriedades dos expoentes:

(\frac{a}{b})^{c} = \frac{a ^{c}}{b ^{c}}

= \frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u ) ^{2}}{( 1 + u ^{2} 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}

Aplicar as propriedades dos expoentes:

(a \cdot b)^{n} = a^{n} b^{n}

1 + u^{2} 1 - (- \frac{u}{1 + u ^{2}})^{2}^{2} = (1 + u^{2})^{2} 1 - (- \frac{u}{1 + u ^{2}})^{2}^{2}

= \frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} u ) ^{2}}{( 1 + u ^{2} ) ^{2} ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}

Aplicar as propriedades dos expoentes:

(a \cdot b)^{n} = a^{n} b^{n}

1 - (\frac{u}{1 + u ^{2}})^{2} u^{2} = u^{2} 1 - (\frac{u}{1 + u ^{2}})^{2}^{2}

= \frac{u ^{2} ( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}{( 1 + u ^{2} ) ^{2} ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}

(1 + u^{2})^{2} : 1 + u^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= ((1 + u^{2})^{\frac{1}{2}})^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 + u^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 + u^{2}

= \frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2} u ^{2}}{( 1 + u ^{2} ) ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}

1 - (\frac{u}{1 + u ^{2}})^{2}^{2} : 1 - (\frac{u}{1 + u ^{2}})^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= (1 - (\frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2}}^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 - (\frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 - (\frac{u}{1 + u ^{2}})^{2}

= \frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) u ^{2}}{( 1 + u ^{2} ) ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} ) ^{2}}

1 - (- \frac{u}{1 + u ^{2}})^{2}^{2} : 1 - (- \frac{u}{1 + u ^{2}})^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= (1 - (- \frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2}}^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 - (- \frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 - (- \frac{u}{1 + u ^{2}})^{2}

= \frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) u ^{2}}{( 1 + u ^{2} ) ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} )}

Expandir

\frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) u ^{2}}{( 1 + u ^{2} ) ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} )} : \frac{u ^{2}}{1 + u ^{2}}

\frac{( 1 - ( \frac{u}{1 + u ^{2}} ) ^{2} ) u ^{2}}{( 1 + u ^{2} ) ( 1 - ( - \frac{u}{1 + u ^{2}} ) ^{2} )}

(1 + u^{2}) (1 - (- \frac{u}{1 + u ^{2}})^{2}) = (1 + u^{2}) (1 - (\frac{u}{1 + u ^{2}})^{2})

(1 + u^{2}) (1 - (- \frac{u}{1 + u ^{2}})^{2})

Aplicar as propriedades dos expoentes:

(- a)^{n} = a^{n},

n

é par

(- \frac{u}{u ^{2} + 1})^{2} = (\frac{u}{1 + u ^{2}})^{2}

= (u^{2} + 1) (- (\frac{u}{u ^{2} + 1})^{2} + 1)

= \frac{u ^{2} ( - ( \frac{u}{u ^{2} + 1} ) ^{2} + 1 )}{( u ^{2} + 1 ) ( - ( \frac{u}{u ^{2} + 1} ) ^{2} + 1 )}

Eliminar o fator comum:

1 - (\frac{u}{1 + u ^{2}})^{2}

= \frac{u ^{2}}{1 + u ^{2}}

= \frac{u ^{2}}{1 + u ^{2}}

Expandir

u 1 - (\frac{u}{1 + u ^{2}})^{2}^{2} : \frac{u ^{2}}{1 + u ^{2}}

u 1 - (\frac{u}{1 + u ^{2}})^{2}^{2}

Aplicar as propriedades dos expoentes:

(a \cdot b)^{n} = a^{n} b^{n}

= u^{2} 1 - (\frac{u}{1 + u ^{2}})^{2}^{2}

1 - (\frac{u}{1 + u ^{2}})^{2}^{2} : 1 - (\frac{u}{1 + u ^{2}})^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= (1 - (\frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2}}^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 - (\frac{u}{1 + u ^{2}})^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 - (\frac{u}{1 + u ^{2}})^{2}

= u^{2} (1 - (\frac{u}{1 + u ^{2}})^{2})

Expandir

(1 - (\frac{u}{1 + u ^{2}})^{2}) u^{2} : \frac{u ^{2}}{1 + u ^{2}}

(1 - (\frac{u}{1 + u ^{2}})^{2}) u^{2}

(\frac{u}{1 + u ^{2}})^{2} = \frac{u ^{2}}{1 + u ^{2}}

(\frac{u}{1 + u ^{2}})^{2}

Aplicar as propriedades dos expoentes:

(\frac{a}{b})^{c} = \frac{a ^{c}}{b ^{c}}

= \frac{u ^{2}}{( 1 + u ^{2} ) ^{2}}

(1 + u^{2})^{2} : 1 + u^{2}

Aplicar as propriedades dos radicais:

a = a^{\frac{1}{2}}

= ((1 + u^{2})^{\frac{1}{2}})^{2}

Aplicar as propriedades dos expoentes:

(a^{b})^{c} = a^{b c}

= (1 + u^{2})^{\frac{1}{2} \cdot 2}

\frac{1}{2} \cdot 2 = 1

\frac{1}{2} \cdot 2

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{1 \cdot 2}{2}

Eliminar o fator comum:

2

= 1

= 1 + u^{2}

= \frac{u ^{2}}{1 + u ^{2}}

= u^{2} (- \frac{u ^{2}}{u ^{2} + 1} + 1)

= u^{2} (1 - \frac{u ^{2}}{1 + u ^{2}})

Colocar os parênteses utilizando:

a (b - c) = ab - a c

a = u^{2}, b = 1, c = \frac{u ^{2}}{1 + u ^{2}}

= u^{2} \cdot 1 - u^{2} \frac{u ^{2}}{1 + u ^{2}}

= 1 \cdot u^{2} - \frac{u ^{2}}{1 + u ^{2}} u^{2}

1 \cdot u^{2} = u^{2}

1 \cdot u^{2}

Multiplicar:

1 \cdot u^{2} = u^{2}

= u^{2}

\frac{u ^{2}}{1 + u ^{2}} u^{2} = \frac{u ^{4}}{1 + u ^{2}}

\frac{u ^{2}}{1 + u ^{2}} u^{2}

Multiplicar frações:

a \cdot \frac{b}{c} = \frac{a \cdot b}{c}

= \frac{u ^{2} u ^{2}}{1 + u ^{2}}

u^{2} u^{2} = u^{4}

u^{2} u^{2}

Aplicar as propriedades dos expoentes:

a^{b} \cdot a^{c} = a^{b + c}

u^{2} u^{2} = u^{2 + 2}

= u^{2 + 2}

Somar:

2 + 2 = 4

= u^{4}

= \frac{u ^{4}}{1 + u ^{2}}

= u^{2} - \frac{u ^{4}}{u ^{2} + 1}

Converter para fração:

u^{2} = \frac{u ^{2} ( 1 + u ^{2} )}{1 + u ^{2}}

= - \frac{u ^{4}}{1 + u ^{2}} + \frac{u ^{2} ( 1 + u ^{2} )}{1 + u ^{2}}

Já que os denominadores são iguais, combinar as frações:

\frac{a}{c} \pm \frac{b}{c} = \frac{a \pm b}{c}

= \frac{- u ^{4} + u ^{2} ( 1 + u ^{2} )}{1 + u ^{2}}

Expandir

- u^{4} + u^{2} (1 + u^{2}) : u^{2}

- u^{4} + u^{2} (1 + u^{2})

Expandir

u^{2} (1 + u^{2}) : u^{2} + u^{4}

u^{2} (1 + u^{2})

Colocar os parênteses utilizando:

a (b + c) = ab + a c

a = u^{2}, b = 1, c = u^{2}

= u^{2} \cdot 1 + u^{2} u^{2}

= 1 \cdot u^{2} + u^{2} u^{2}

Simplificar

1 \cdot u^{2} + u^{2} u^{2} : u^{2} + u^{4}

1 \cdot u^{2} + u^{2} u^{2}

1 \cdot u^{2} = u^{2}

1 \cdot u^{2}

Multiplicar:

1 \cdot u^{2} = u^{2}

= u^{2}

u^{2} u^{2} = u^{4}

u^{2} u^{2}

Aplicar as propriedades dos expoentes:

a^{b} \cdot a^{c} = a^{b + c}

u^{2} u^{2} = u^{2 + 2}

= u^{2 + 2}

Somar:

2 + 2 = 4

= u^{4}

= u^{2} + u^{4}

= u^{2} + u^{4}

= - u^{4} + u^{2} + u^{4}

Simplificar

- u^{4} + u^{2} + u^{4} : u^{2}

- u^{4} + u^{2} + u^{4}

Agrupar termos semelhantes

= - u^{4} + u^{4} + u^{2}

Somar elementos similares:

- u^{4} + u^{4} = 0

= u^{2}

= u^{2}

= \frac{u ^{2}}{1 + u ^{2}}

= \frac{u ^{2}}{1 + u ^{2}}

\frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}}

\frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}}

Resolver

\frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}} :

Verdadeiro para todo

u

\frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}}

Subtrair

\frac{u ^{2}}{1 + u ^{2}}

de ambos os lados

\frac{u ^{2}}{1 + u ^{2}} - \frac{u ^{2}}{1 + u ^{2}} = \frac{u ^{2}}{1 + u ^{2}} - \frac{u ^{2}}{1 + u ^{2}}

Simplificar

0 = 0

Os lados são iguais

Verdadeiro para todo u

Verdadeiro para todo u

Substituir na equação

u = tan (f)

Verdadeiro para todo tan (f)

Verdadeiro para todo tan (f)

tan (f) =

Verdadeiro para todo

u \in R : f = arctan (Verdadeiro para todo u \in R) + πn

tan (f) = Verdadeiro para todo u \in R

Aplique as propriedades trigonométricas inversas

tan (f) = Verdadeiro para todo u \in R

Soluções gerais para

tan (f) =

Verdadeiro para todo

u \in R

tan (x) = a \Rightarrow x = arctan (a) + πn

f = arctan (Verdadeiro para todo u \in R) + πn

f = arctan (Verdadeiro para todo u \in R) + πn

Combinar toda as soluções

f = arctan (Verdadeiro para todo u \in R) + πn

Dado que a equação é indefinida para:

arctan (Verdadeiro para todo u \in R) + πn

Sem solu \overset{c}{\c} \tilde{a} o para f \in R

A solução é

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}

x = \frac{tan ( f )}{1 + tan ^{2} ( f )}

Gráfico

Exemplos populares

sin(2x)=((8m-2))/5

sin (2 x) = \frac{( 8 m - 2 )}{5}

csc(3x)=sin(3x)

csc (3 x) = sin (3 x)

sin^2(x)=((10m-7))/9

sin^{2} (x) = \frac{( 10 m - 7 )}{9}

8sin(x)=2+4/(csc(x))

8 sin (x) = 2 + \frac{4}{csc ( x )}

solvefor y,2e^x-sin(y)=x

so l v e f or y, 2 e^{x} - sin (y) = x