Question

If A = 30\(^{\circ}\), then find the value of 2 sin A cos A.

Answer 1

Correct Answer - Option 4 : \(\rm \frac{\sqrt{3}}{2}\)

Concept:

sin 2A = 2 sin A cos A

Calculation:

Given: A = 30\(^{\circ}\)

2sin A cos A

= sin 2A

= sin 2 × 30\(^{\circ}\)

= sin 60\(^{\circ}\)

= \(\rm \frac{\sqrt{3}}{2}\)