Proove that: sinA.sin(60-A)sin(60+A)=1/4.sin3A?

CBSE Class 11
1

proove that: sinA.sin(60-A)sin(60+A)=1/4.sin3A?

2

Here is the solution of your question
Consider LHS = sinA. sin(60-A)sin(60+A)=
image