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(sin5A-sin7A+sin8A-sin4A)/(cos4+cos7A-co...

`(sin5A-sin7A+sin8A-sin4A)/(cos4+cos7A-cos5A-cos8A)=cot6A`

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Prove that (sin5A-sin7A+sin8A-sin4A)/(cos4A+cos7A-cos5A-cos8A)=cot6A

Prove that: (sin5A-sin7A+sin8A-sin4A)/(cos4A+cos7A-cos5A-cos8A)=cot 6A

Prove that: (sin5a-sin7A+sin8A-sin4a)(cos4A+cos7A-cos5A-cos8A)=cot 6A

(sin A-sin5A+sin9A-sin13A)/(cos A-cos5A-cos9A+cos13A)=cot4A

(sin A-sin5A+sin9A-sin13A)/(cos A-cos5A-cos9A+cos13A)=cot4A

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

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

(sin3A+sin5A+sin7A+sin9A)/(cos3A+cos5A+cos7A+cos9A)

Prove that: (sin3A+sin5A +sin7A+sin9A)/(cos3A+cos5A+cos7A+cos9A)=tan6A

(sin3A+sin5A+sin7A+sin9A)/(cos3A+cos5A+cos7A+cos9A)=tan6A