`tan^(- 1)((sqrt(1+x)+sqrt(1-x))/(sqrt(1+x)-sqrt(1-x)))`A. `(pi)/(2)-c – InterviewSolution

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1.	`tan^(- 1)((sqrt(1+x)+sqrt(1-x))/(sqrt(1+x)-sqrt(1-x)))`A. `(pi)/(2)-cos^(-1)x`B. `(pi)/(2)+cos^(-1)x`C. `(pi)/(4)-(1)/(2)cos^(-1)x`D. `(pi)/(4)+(1)/(2)cos^(-1)x`
Answer» Correct Answer - C

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