sqrt(cosec^2*A(-cos(A)^2 %2B 1))=1 – InterviewSolution

InterviewSolution

1.

sqrt(cosec^2*A(-cos(A)^2 %2B 1))=1

Answer»

To prove:

√(cosec²A(1-cos ²A)=1

Solution√(cosec²A(1-cos ²A)=√(cosec²A sin²A)=√(1/sin²A)(sin²A)=1RHS

Hence proved

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