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The value of (sin 7 A + sin 3 A)/(cos 7...

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

A

tan 5A

B

cot 5 A

C

sec 5 A - tan 5 A

D

sec 5 A + cot 5 A

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The correct Answer is:
A
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