1.

`tan ^(-1)""(sqrt(1+x)-sqrt(1-x))/(sqrt(1+x)+sqrt(1-x)), (-1)/(sqrt(2)) lexle 1` का सरलतम रूप में लिखें

Answer» Correct Answer - `(pi)/(4)-(1)/(2) cos^(-1)x`
`(pi)/(4)-(1)/(2) cos^(-1)x`


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