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सरलतम रूप में लिखें - (1+cosA)(1-cosA)(...

सरलतम रूप में लिखें -
`(1+cosA)(1-cosA)(1+cot^(2)A)`.

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sqrt((1-cosA)/(1+cosA))=

(1+sinA-cosA)/(1+sinA+cosA)=

((sinA)/(1-cosA))-((1-cosA)/(sinA))=

Prove that (1+cosA)/(1-cosA)=("cosec" A+cotA)^(2)

Simplify: sqrt((1+cosA)/(1-cosA))

Evaluate (sinA(1-cosA+1+cosA))/(1-cos^2A)

Prove: (1+cosA)/(sin^2A)=1/(1-cosA)

Find the value of (1-cosA)/(1+cosA) .