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# Help with integration question watch

1. How do you integrate the following:

cosh(x)sinh^2(x) - cosh^3(x)

Anybody know the answer? Help would be very much appreciated!
2. cosh(x) [ sinh^2(x) - cosh^2(x)]

what's the thing inside the brackets?
3. The thing inside the brackets, ie sinh^2(x) - cosh^2(x) = -1. So are we just then left to integrate -cosh(x)??
4. yup
5. Ok. Now it's time to throw a spanner into the works. This is part of a question asking for the integral of a curve, defined by the hyperbola x^2 - y^2 = 1, z = 0, from (1,0,0) to (2,root3,0). I have parameterised this, however I am not sure what the limit for t would be. Any takers?
6. Anyone any ideas?

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Updated: February 11, 2010
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