Math, asked by jashkapadia, 5 months ago

prove( cos³o+sin³o/coso+sino) + (cos³o-sin³o/coso-sino)=2

Answers

Answered by vivekanandrai138

Answer:

LHS

cosA+sinA(cos²+sin²-cosAsinA)/cosA+sinA+cosA-sinA(cos²+sin²A-cosASinA/cosA-sinA

cos²A+sin²-cosAsinA+cos²A+sin²+cosAsinA

(cos²A+sin²A)+(cos²A+sin²A)

1+1=2. RHS

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