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| 1. |
`(d)/(dx)[tan^(-1)""(sqrt(1+x^(2))-1)/(x)]` का मान होगा-A. `(1)/(1+x^(2))`B. `(x^2)/(2sqrt(1+x^(2))(sqrt(1+x^(2)-1)))`C. `(2)/(1+x^(2))`D. `(1)/(2(1+x^(2)))` |
| Answer» Correct Answer - A | |