Question

Prove cos30°+sin60°divided by 1+cos60°+sin30°=√3 by 2

Answer 1

Step-by-step explanation:

sin60 = cos30

.and sin30 = cos60

(because sin(90-∆)= cos∆)

now ..... cos30 + cos30/1+cos60+cos60

2 cos 30/1+2cos60

.

= 2*√3/2*2

(because cos 30 is √3/2 and cos60 is 1/2)

=√3/2