Question

If $\theta$ is in the first quadrant, then $\sqrt{(1-sin2\theta )}$ = - cos$\theta$. State whether the given statement is true or false.

• A. True
• B. False

Answer 1

The correct option is B

False

The term under square root is always positive

L.H.S is always positive

R.H.S is negative

So, the statement is not true for any value of $\theta$ in the first quadrant.