imo class 12 definite integration

Find the value of ∫[1 to 3] (1/x) dx.

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Find the value of ∫[1 to 3] (1/x) dx.

  • A. ln 3
  • B. ln 2
  • C. ln 4
  • D. 1

Answer: A) ln 3

Explanation: The anti-derivative is ln x. Evaluating from 1 to 3 gives ln 3 - ln 1 = ln 3 - 0 = ln 3.

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