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Volumes by Disk and Washer Methods

AP Calculus AB· difficulty 3/5

For revolution around the line y=cy = c (above the curve ff), the radius is

  • A

    cc

  • B

    f(x)⋅cf(x) \cdot c

  • C

    c−f(x)c - f(x)

    check_circle
  • D

    f(x)−cf(x) - c

Explanation

Distance from line y=cy = c to a point at height f(x)f(x) below it: c−f(x)c - f(x).

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