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Prove that (sin 11 A sin A+sin 7A sin 3A)/(cos 11 A sin A+cos 7A sin 3A)=tan 8A

Prove that: (sin11 A\ sin A+sin7A\ sin3A)/(cos 11\ A\ sin A+cos7Asin3A)=t a n8A

Prove the following : (sin11 A sin A +sin 7A sin 3A)/ (cos11A sin A + cos 7A sin3A)= tan 8A .

Prove the following: ("sin" 11A sin A+"sin" 7A sin 3A)/(cos 11A sin A+cos 7A sin 3A)="tan" 8A .

Show that ( sin 5A + 2 sin 8A + sin 11A ) /( sin 8 A +2sin 11A + sin 14A ) = (sin 8A)/( sin 11A)

Prove that: quad (sin11As in A+s in7As in3A)/(cos11As in A+cos7A sin3A)=tan8A

Show that (sin 5 A + 2 sin 8A + sin 11 A)/( sin 8A + 2 sin 11 A + sin 14 A) = (sin 8A)/(sin 11 A).

Solve 2 cos^(2) theta + 11 sin theta = 7

Show that: (sin11x sinx+sin7x sin3x)/(cos11x sinx + cos7x sin3x)=tan8x

Solve 2 cos^(2) theta + 11 sin theta = 7 .