cos2 e[2001]3. Prove that: 1-= sin e.1+ sin e – InterviewSolution

1.

cos2 e[2001]3. Prove that: 1-= sin e.1+ sin e

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sin€ iss lye hum bol rhe h

1- cos^2A/1+sinA=1- (1-sin^2A)/(1+sinA){a^2-b^2=(a+b)(a-b)}=1- (1+sinA)(1-sinA)/(1+sinA)= 1-(1-sinA)= 1-1+sinA=sinA

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