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.

Step-by-step 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.