Q49 / 90 · JEE Main 2019 (12 Jan Shift 1) · Mathematics
For , if , then is equal to
- A
- Correct answerB
- C
- D
Solution
Given,
Taking natural logarithm on both sides, we get
Differentiating both sides with respect to , we get
(Using quotient rule)
.
Hence, the correct answer is option: 'B'.