Question

prove that:
1+sinA-cosA ÷ 1+sinA+CosA + 1+sinA+cosA÷ 1+sinA-cosA​

Answer 1

Answer:

let ,1+sinA+cosA=x

and,1+sinA-cosA=y

y/x+x/y

y²+x²/xy

2(1+sin²A+2sinA+cos²A)/1+sin²A+2sinA+cos²A

2

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