Question

If sin 30°  = x and cos 60°=y , then x2 + y2 is   

A12

B0

C4

D 60°​

Answer 1

Answer:

sin 30 degree =1/2 .so (1/2) square =1/4.

cos 60 degree =1/2 . so (1/2) square =1/4.

1/4+1/4=2/4=1/2.