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| 1. |
यदि `0 lt x lt 1` हो तब ` sqrt(1+x^(2))[{x cos(cot^(-1)x)+sin(cot^(-1)x)}^(2)-1]^((1)/(2))`=...A. xB. `x^(2)`C. `x sqrt(1+x^(2))`D. `sqrt(1+x^(2))` |
| Answer» Correct Answer - C | |