1.

Prove that (sin 7x +sin 5x)+(sin 9x+ sin 3x)(cos 7x+ cos 5x)+(cos 9x + cos 3x)=tan 6x

Answer»

Prove that

(sin 7x +sin 5x)+(sin 9x+ sin 3x)(cos 7x+ cos 5x)+(cos 9x + cos 3x)=tan 6x



Discussion

No Comment Found