Question

Express sin 50+ sin 30 as a product​

Answer 1

Answer:

we know that sin c+ sin d=2sin(c+d/2)cos(c-d/2)

there fore sin 50 + sin 30=2×sin(50+30/2)×cos(50-30/2)

=2×sin 40×cos 10

hence expressed in terms of product

if u have any doubt ask me