FTC and Definite Integrals

AP Calculus AB· difficulty 2/5

121x2dx=\displaystyle\int_1^2 \dfrac{1}{x^2}\,dx =

  • A

    22

  • B

    11

  • C

    12\tfrac{1}{2}

    check_circle
  • D

    32\tfrac{3}{2}

Explanation

[1/x]12=1/2(1)=1/2[-1/x]_1^2 = -1/2 - (-1) = 1/2.

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