Question

Prove that : sin2 + sin2

( + 60°) + sin2

( − 60°) =

3/2
​

Answer 1

Answer:we know,

tan 45° = 1, cos 30° = √3/2, sin 60° = √3/2

now, put the values

2(1)² + (√3/2)²- (√3/2)² = 2.

Step-by-step explanation: