# How do you find the volume of the solid whose base is the region bounded by y = x^2, y =x, x = 2 and x = 3, where cross-sections perpendicular to the x-axis are squares?

Here's my go at a drawing, you may even get the idea from it.

To clarify if not, the black squares are the cross sections of the solid, they are based on the xy plane and rise vertically to form these square cross sections.

At a given value of

So the volume,

Easiest now is to expand integrand and use the power rule, term by term. It evaluates as:

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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