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Verify the Given Identity sinu+sinvcosu+cosv=tan12(u+v)\frac { \sin u + \sin v } { \cos u + \cos v } = \tan \frac { 1 } { 2 } ( u + v )

Question 23

Essay

Verify the given identity.
sinu+sinvcosu+cosv=tan12(u+v)\frac { \sin u + \sin v } { \cos u + \cos v } = \tan \frac { 1 } { 2 } ( u + v )

Correct Answer:

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\[\begin{aligned}
\frac { \sin u + \sin ...

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