Question

if cos x°=sin30°; find the value of x

Answer 1

cos x = sin 30

cos x = 1/2

but cos 60 = 1/2

so

x = 60

Answer 2

Heya,

Given=>

cos x° = sin 30°

sin(90 - x)° = sin 30°

sin will get cancelled both sides,

90° - x° = 30°

x° = 60°. ..... Answer

Hope this helps....:)