Question

Using the formula, sin 2A = 2 sin A cos A, find the value of sin 60, given sin 30 = 1 / 2 ...please answer this question

Answer 1

Step-by-step explanation:

To find sin 60 = ?

Given, sin 30 = 1/2

we know, cos 30 = √3/2

2A = 60

A = 60/2 = 30

We have,

sin 60 = 2 * sin 30 * cos 30

= 2 * 1/2 * √3/2

= (2√3)/4

= √3/2