Question

sin3a/sina +cos3a/cosa urgent hai pleaseeeeeeeee

Answer 1

Solution:) sin(3a) / sin(a) - cos(3a) / cos(a). then cross multiply, we'll get, = [sin(3a) cos(a) - cos(3a) sin(a)] / sin(a) cos(a)... = sin(3a - a) / [1/2 sin(2a)] = 2...