Dit 3.sin? (r) 0 cos x

Evaluate the integerals. int (sin 2x)/(a cos ^(2) x + b sin ^(2)x)dx on I sub R \\ {x in R| a cos ^(2)x +b sin ^(2) x =0}.

Solve :3sin^(2)x-sin x cos x-4cos^(2)x=0

If sin ^(3) x sin 3 x=sum_(r=0)^(n) a_(r) cos r x is an identity in x, then n=

(sin3x + sin x) sin x + (cos3x-cos x) cos x = 0

Prove that: (sin 3x + sin x) sin x + (cos 3x -cos x) cos x = 0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0

(sin 3x + sin x ) sin x + (cos 3x - cos x) cos x =0