Question

on the fourth step why do u use inverse sin

Answer 1

Given

The explanation of the question is given with all the steps.

Explanation

In the fourth step,

The equation is given

$\sin \theta=0.1414$

And inverse is used,

$\theta=\sin ^{-1}(0.1414)$

Answer

To find the value of theta, we have to take the inverse of the trigonometric function sin.

Otherwise , we cannot calculate the value of theta.