Question

Evaluate : cos 30°x cos 60° + sin 30°​

Answer 1

Answer:

(root 3 + 2 )/ 4

Step-by-step explanation:

value of cos 30 = root 3 / 2 , cos 60 = 1/2 , sin 30 = 1/2

now,

root 3 / 2 * 1/2 + 1/2

= root 3 / 4 + 1/2

= (root 3 + 2) / 4 .

(H.P.)

hope it helps