Question

sin 20 cos 40 sin 80 =root 3/8​

Answer 1

Step-by-step explanation:

We know formula

sin theta. sin(60-theta).sin(60+theta) = sin3theta /4

sin 20 . sin 40 . sin 80. = sin3(20)/4

= √3/2/4

= √3/8

Hope it helps uh!