Question

5. If Sin A + sin A = 1, then the value of the expression (Cos? A + Cos* A) is
(a) 1
O (b) 1/2
0 (c) 2
(d) 3​

Answer 1

Step-by-step explanation:

2 Sin A = 1

Sin A = 1/2

Sin A = Sin 30

A = 30

Cos A + Cos A

= 2 Cos 30

= 2 * √3/2

= √3