Calculus

Find the volume of the solid generated by rotating about the y axis the area in the first quadrant bounded by the following curve and lines.
y=x^2, x=0, y=2.

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asked by Kristin
  1. use discs or shells.

    v = ∫[0,2] πr^2 dy
    where r = x

    or

    v = ∫[0,√2] 2πrh dx
    where r=x and h=y

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    posted by Steve
  2. What do you mean my discs and shells?

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    posted by Kristin

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