English, asked by hacker008, 4 months ago

prove that (cosA)/(1 + sin A) + (1 + sin A)/(cos A) = 2 sec(A)​

Answers

Answered by adithyakrishnan6137
3

Answer:

LHS = cosA / 1+sinA   +   1+sinA / cosA

       =(cos^2A+1+sin^2A+2sinA )  /cosA(1+sinA)

       = (2+2sinA)   /  cosA(1+sinA)

       = {2(1+sinA)}  /  cosA (1+sinA)

       = 2 / cosA

       = 2secA

RHS = 2secA

          therefore ,  LHS = RHS

Hence, proved.

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