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" 8."(sin A+sin3A+sin5A)/(cos A+cos3A+co...

" 8."(sin A+sin3A+sin5A)/(cos A+cos3A+cos5A)=tan3A

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Prove that: (sinA+sin3A+sin5A)/(cos A+cos3A+cos5A)=tan3A

Prove that (sinA+sin3A+Sin5A)/(cosA+cos3A+cos5A)=tan3A

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove that (sinA+sin2A+sin4A+sin5A)/(cos A+cos2A+cos 4A+cos5A)=tan3A .

Prove any one of the following: (sin 5A-2sin 3A+sin A)/(cos 5A-cos A)=tan A

(sin A+sin3A)/(cos A+cos3A)=tan2A

(sin A+sin3A+sin5A+sin7A)/(cos A+cos3A+cos5A+cos7A)=tan4A