Math, asked by redkargauri, 2 months ago

Please solve this question with proper reasoning. no spamming ffs.

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Answered by deveshchoudhary15

1

Answer:

the answer will be- tan5A

Step-by-step explanation:

by using cosA-cosB=-2sin(A+B/2).sin (A-B/2).

simarly sinA+sinB=2sin(A+B/2).cos(A-B/2).

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