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What is the value of [(cos 7A +cos 5A) d...

What is the value of `[(cos 7A +cos 5A) div (sin 7A -sin 5A)]`?
`[(cos 7A +cos 5A) div (sin 7A -sin 5A)]` का मान क्या हे?

A

tan A

B

tan 4 A

C

cot 4 A

D

cot A

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What is the value of [ ( cos 7 A + cos 5 A) div ( sin 7 a - sin 5 A)] ?

(cos 7A + cos 5A)/(sin 7A-sin 5A)=

(cos7A+cos5A)/(sin7A-sin5A)=

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

(sin A + sin5A + sin9A) / (cos A + cos5A + cos9A) =

(sin7A-sin5A)/(cos7A+cos5A)=tan A

Prove that: (cos7A+cos5A)/(sin7A-sin5A)=cot A

The value of (sin 7 A + sin 3 A)/(cos 7 A + cos 3 A) is equal to

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