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Popular Trigonometria >

(5000*sin(30))/(sin(90))

Solução

\frac{5000 \cdot sin ( 3 0 ^{\circ} )}{sin ( 9 0 ^{\circ} )}

Solução

2500

Passos da solução

\frac{5000 sin ( 3 0 ^{\circ} )}{sin ( 9 0 ^{\circ} )}

Utilizar a seguinte identidade trivial:

sin (3 0^{\circ}) = \frac{1}{2}

sin (3 0^{\circ})

sin (x)

tabela de periodicidade com ciclo de

36 0^{\circ} n

:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= \frac{1}{2}

Utilizar a seguinte identidade trivial:

sin (9 0^{\circ}) = 1

sin (9 0^{\circ})

sin (x)

tabela de periodicidade com ciclo de

36 0^{\circ} n

:

x 0 3 0^{\circ} 4 5^{\circ} 6 0^{\circ} 9 0^{\circ} 12 0^{\circ} 13 5^{\circ} 15 0^{\circ} sin (x) 0 \frac{1}{2} \frac{2}{2} \frac{3}{2} 1 \frac{3}{2} \frac{2}{2} \frac{1}{2} x 18 0^{\circ} 21 0^{\circ} 22 5^{\circ} 24 0^{\circ} 27 0^{\circ} 30 0^{\circ} 31 5^{\circ} 33 0^{\circ} sin (x) 0 - \frac{1}{2} - \frac{2}{2} - \frac{3}{2} - 1 - \frac{3}{2} - \frac{2}{2} - \frac{1}{2}

= 1

= \frac{5000 \cdot \frac{1}{2}}{1}

Simplificar

\frac{5000 \cdot \frac{1}{2}}{1} : 2500

\frac{5000 \cdot \frac{1}{2}}{1}

Multiplicar

5000 \cdot \frac{1}{2} : 2500

5000 \cdot \frac{1}{2}

Multiplicar frações:

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

= \frac{1 \cdot 5000}{2}

Multiplicar os números:

1 \cdot 5000 = 5000

= \frac{5000}{2}

Dividir:

\frac{5000}{2} = 2500

= 2500

= \frac{2500}{1}

Aplicar a regra

\frac{a}{1} = a

= 2500

= 2500

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