WEBVTT
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Okay, so this question wants us to evaluate this
2
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integral from our table. So again, this doesn't
3
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look like anything at our table. So we need
4
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to make a U sub. So it does.
5
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So based on the Y squared in the denominator and
6
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the one over when the argument maybe one over why
7
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would be a good choice for a use of and
8
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then do you becomes negative one over y squared d
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Y. But well, we don't have a negative
10
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one over y squared. We have a positive.
11
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So we need to multiply by negative one. So
12
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now we're good to go substituting and we get negative
13
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the integral of hyperbolic co tangent of you, do
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you? And that's a much simpler integral that we
15
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know how to calculate from our table. And our
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table just tells us that hyperbolic co tangent has an
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integral Ln of hyperbolic sign. So now all we
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got to do is plug back in for you and
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we're done. So we get negative, Ellen of
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the absolute value of hyperbolic sign both you, which
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is one over why plus c so again pretty straightforward
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. If you know what substitution to may