JEE Mathematics ยท Easy

Differentiability: Mixed MCQ

Solve this quality-checked JEE multiple-choice question, then review the correct answer and explanation.

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MixedEasyQuestion 360012

Question

d/dx(ln x) equals:
  1. A
    1/x
    Correct
  2. B
    1
  3. C
    ln x/x
  4. D
    x/ln x

Correct answer

1/x

Explanation

d/dx(ln x) = 1/x for x > 0. More generally, d/dx(ln|x|) = 1/x.