Question

alguém consegue fazer?

Answer 1

Resposta:

Letra C.

Explicação passo-a-passo:

sen(2θ)=$\frac{24}{25}$

arcsen(sen(2θ))=arcsen($\frac{24}{25}$)

2θ=arcsen(0,96)

2θ=73,739795291688042593711225118187

θ=$\frac{73,739795291688042593711225118187}{2}$

θ=36,869897645844021296855612559093‬°

sen(θ)=$\frac{x}{1}$=x

cos(θ)=$\frac{y}{1}$=y

sen(36,869897645844021296855612559093‬°)=0,6

cos(36,869897645844021296855612559093‬°)=0,8

1+0,8+0,6=2,4

$\frac{12}{5}$=2,4‬