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Please solve these problems for me and make your writing easy to read 3. Find tan (A + B) if sinA = = , A

Please solve these problems for me and make your writing easy to read

3. Find tan (A + B) if sinA = = , A in Q II, and sinB = B in Q IV. V2 -4 -2 2 4 X 2 4 4. Prove the following identities. 2 (b) 1 - cos 2x (a) = tanx 1 - sinx 1 + sinx COS- X sin 2x

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