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| 1. |
` x= (pi)/(6)` पर `cot ^(-1) [(cos 2x) ^*1//2) ]` का अवकलन गुणांक है-A. ` (2//3) ^(1//2)`B. ` (1//3)^(1//2)`C. `3^(1//2) `D. ` 6^(1//2) ` |
| Answer» Correct Answer - A | |