MCQ
$`d/dx[cot^-1(sqrtx)]`$ = ______
- ✓$`(-1)/(2sqrtx(1 + x))`$
- B$\operatorname{cosec}^{-1} x$
- C$`(-1)/(1 + x)`$
- D$`(2sqrtx)/(1 + x)`$
✓
Answer
Correct option: A.
$`(-1)/(2sqrtx(1 + x))`$
A
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