cos(theta)/(sin(theta) %2B 1) %2B cos(theta)/(-sin(theta) %2B 1)=4 – InterviewSolution

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1.	cos(theta)/(sin(theta) %2B 1) %2B cos(theta)/(-sin(theta) %2B 1)=4
Answer» cosx/ 1- sinx + cosx/1+sinx= cosx(1+sinx+1-sinx)/ (1-sinx)(1+sinx)=2. cosx/ cosx^2= 2/ cosx=2/(cos(π/3)=2/(1/2)=2×2=4

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