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Beliebt Trigonometrie >

cos(x)sec(x)cot^2(x)=csc^2(x)

Lösung

cos (x) \cdot sec (x) \cdot cot^{2} (x) = csc^{2} (x)

Lösung

Keine L \overset{o}{¨} sung f \overset{u}{¨} r x \in R

Schritte zur Lösung

cos (x) sec (x) cot^{2} (x) = csc^{2} (x)

Subtrahiere

csc^{2} (x)

von beiden Seiten

cot^{2} (x) cos (x) sec (x) - csc^{2} (x) = 0

Drücke mit sin, cos aus

- csc^{2} (x) + cos (x) cot^{2} (x) sec (x)

Verwende die grundlegende trigonometrische Identität:

csc (x) = \frac{1}{sin ( x )}

= - (\frac{1}{sin ( x )})^{2} + cos (x) cot^{2} (x) sec (x)

Verwende die grundlegende trigonometrische Identität:

cot (x) = \frac{cos ( x )}{sin ( x )}

= - (\frac{1}{sin ( x )})^{2} + cos (x) (\frac{cos ( x )}{sin ( x )})^{2} sec (x)

Verwende die grundlegende trigonometrische Identität:

sec (x) = \frac{1}{cos ( x )}

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

Vereinfache

- (\frac{1}{sin ( x )})^{2} + cos (x) (\frac{cos ( x )}{sin ( x )})^{2} \frac{1}{cos ( x )} : \frac{- 1 + cos ^{2} ( x )}{sin ^{2} ( x )}

- (\frac{1}{sin ( x )})^{2} + cos (x) (\frac{cos ( x )}{sin ( x )})^{2} \frac{1}{cos ( x )}

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

(\frac{1}{sin ( x )})^{2}

Wende Exponentenregel an:

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

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

Wende Regel an

1^{a} = 1

1^{2} = 1

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

cos (x) (\frac{cos ( x )}{sin ( x )})^{2} \frac{1}{cos ( x )} = \frac{cos ^{2} ( x )}{sin ^{2} ( x )}

cos (x) (\frac{cos ( x )}{sin ( x )})^{2} \frac{1}{cos ( x )}

Multipliziere Brüche:

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

= \frac{1 \cdot cos ( x ) ( \frac{c o s ( x )}{s i n ( x )} ) ^{2}}{cos ( x )}

Streiche die gemeinsamen Faktoren:

cos (x)

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

(\frac{cos ( x )}{sin ( x )})^{2} = \frac{cos ^{2} ( x )}{sin ^{2} ( x )}

(\frac{cos ( x )}{sin ( x )})^{2}

Wende Exponentenregel an:

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

= \frac{cos ^{2} ( x )}{sin ^{2} ( x )}

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

Multipliziere:

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

= \frac{cos ^{2} ( x )}{sin ^{2} ( x )}

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

Wende Regel an

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

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

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

\frac{- 1 + cos ^{2} ( x )}{sin ^{2} ( x )} = 0

\frac{f ( x )}{g ( x )} = 0 \Rightarrow f (x) = 0

- 1 + cos^{2} (x) = 0

Löse mit Substitution

- 1 + cos^{2} (x) = 0

Angenommen:

cos (x) = u

- 1 + u^{2} = 0

- 1 + u^{2} = 0 : u = 1, u = - 1

- 1 + u^{2} = 0

Verschiebe

1

auf die rechte Seite

- 1 + u^{2} = 0

Füge

1

zu beiden Seiten hinzu

- 1 + u^{2} + 1 = 0 + 1

Vereinfache

u^{2} = 1

u^{2} = 1

Für

x^{2} = f (a)

sind die Lösungen

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

u = 1, u = - 1

1 = 1

1

Wende Regel an

1 = 1

= 1

- 1 = - 1

- 1

Wende Regel an

1 = 1

= - 1

u = 1, u = - 1

Setze in

u = cos (x)

ein

cos (x) = 1, cos (x) = - 1

cos (x) = 1, cos (x) = - 1

cos (x) = 1 : x = 2 πn

cos (x) = 1

Allgemeine Lösung für

cos (x) = 1

cos (x)

Periodizitätstabelle mit

2 πn

Zyklus:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

x = 0 + 2 πn

x = 0 + 2 πn

Löse

x = 0 + 2 πn : x = 2 πn

x = 0 + 2 πn

0 + 2 πn = 2 πn

x = 2 πn

x = 2 πn

cos (x) = - 1 : x = π + 2 πn

cos (x) = - 1

Allgemeine Lösung für

cos (x) = - 1

cos (x)

Periodizitätstabelle mit

2 πn

Zyklus:

x 0 \frac{π}{6} \frac{π}{4} \frac{π}{3} \frac{π}{2} \frac{2 π}{3} \frac{3 π}{4} \frac{5 π}{6} cos (x) 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} x π \frac{7 π}{6} \frac{5 π}{4} \frac{4 π}{3} \frac{3 π}{2} \frac{5 π}{3} \frac{7 π}{4} \frac{11 π}{6} cos (x) - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2} 0 \frac{1}{2} \frac{2}{2} \frac{3}{2}

x = π + 2 πn

x = π + 2 πn

Kombiniere alle Lösungen

x = 2 πn, x = π + 2 πn

Da die Gleichung undefiniert ist für:

2 πn, π + 2 πn

Keine L \overset{o}{¨} sung f \overset{u}{¨} r x \in R

Graph

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sin(θ)= 7/15

sin (θ) = \frac{7}{15}

cos(x)=(sqrt(5))/3

cos (x) = \frac{5}{3}

cos(x)=-7/8

cos (x) = - \frac{7}{8}

sin(x)=-cos(2x)

sin (x) = - cos (2 x)

cos(x)*sec(x)*cot^2(x)=csc^2(x)

Lösung

Lösung

Graph

Beliebte Beispiele

cos(x)sec(x)cot^2(x)=csc^2(x)