Chapter 14, Problem 2PT

To determine

To verify :The value of $\cos (30°-\theta )=\sin (60°+\theta )$

Answer to Problem 2PT

1

Explanation of Solution

Given information :

We know that, the given equation is $\cos (30°-\theta )=\sin (60°+\theta )$

Calculation :

The given equation is

  $\begin{array}{l}\text{L}\text{.H}\text{.S}\text{.}=\cos (30°-\theta )\\ =\cos (90°-(60°+\theta ))\\ =\sin (60°+\theta )\\ =\text{R}\text{.H}\text{.S}\text{.}\end{array}$