WEBVTT
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Okay, The first thing we want to do is
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we want to draw the diagram because they've specified to
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use a graft to find the intersection points of intersection
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points. Pretty straightforward. Just the origin with zero
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comma. Zero second intersection point. If you want
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to use does most, you would figure out it's
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2.175 comma 0.38 I get out of recommend using some
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sort of graphing platform to do this because it can
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be a little tricky to do these on your owned
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by hand. Now we know we're gonna be slicing
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this way, As you can see from the blue
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line I've drawn Okay, The height we know is
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gonna be acts overact, scorn plus one minus x
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squared plus two acts a specified in the problem.
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We know the radius is going to simply be X
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in this context, which means now plugging into the
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we have two pi times the intro from 0 to
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2.175 the radius. We just said that was acts
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times the height. This was a valued axe over
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ax squared, plus one minus x squared cost to
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axe times D of axe, which gives us 14.45
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