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

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Prove that: ((sin 7x + sin 5x) + (sin 9x + sin 3x))/((cos7x + cos5x) + (cos9x + cos 3x))=tan 6x

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

Prove that (sin x + sin 3x + sin 5x + sin 7x)/(cos x + cos 3x + cos 5x + cos 7x ) = tan 4x

(sin 7x - sin 5x)/(cos 7x + cos 5x) = tan x

Prove that: ((sin7x+sin5x)+(sin9x+sin3x))/((cos7x+cos5x)+(cos9x+cos3x))=tan6x

Prove that ((sin7x+sin5x)+(sin9x+sin3x))/((cos7x+cos5x)+(cos9x+cos3x))=tan6x

Prove that: ((sin7x+sin5x)+(sin9x+sin3x))/((cos7x+cos5x)+(cos9x+cos3x))=tan6x

Prove that (sin 7 x - sin 5x-sin3x +sin x)/(cos 7x-cos5x+cos3 x-cos x)=tan 2x

(sin x + sin 3x + sin 5x)/(cos x + cos 3x + cos 5x) = tan 3x

(sin 5x + sin 3x)/(cos 5x + cos 3x) = tan 4x