sinA+sinB=a & cosA+cosB=b Prove that- sin(A+B)=(2ab)/(a²+b²)

Question

Vikas TU · Answer

Apply sinc + sind and cosc + cosd forulae: and divide them u would get the relation of tan in terms of a and b. And then after find sin(A+B) taking lhs and prove it for RHS.

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sinA+sinB=a & cosA+cosB=b Prove that- sin(A+B)=(2ab)/(a²+b²)

sinA+sinB=a & cosA+cosB=b
Prove that- sin(A+B)=(2ab)/(a²+b²)

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sinA+sinB=a & cosA+cosB=b Prove that- sin(A+B)=(2ab)/(a²+b²)

sinA+sinB=a & cosA+cosB=bProve that- sin(A+B)=(2ab)/(a²+b²)

1 Answers

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sinA+sinB=a & cosA+cosB=b
Prove that- sin(A+B)=(2ab)/(a²+b²)