Volumes by Disk and Washer Methods

AP Calculus AB· difficulty 4/5

x=a

A
$2\pi \int_a^b x f(x)\,dx$
B
$\int_a^b f(x)\,dx$
C
$\pi \int_a^b f(x)\,dx$
D
$\pi \int_a^b [f(x)]^2\,dx$
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Explanation

V = \pi \int_a^b [f(x)]^2\,dx

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