Calculus 2: Hyperbolic Functions (47 of 57) What is a Catenary? Part 2 of 4

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In this video I will continue to derive the equation that will describe a hanging cable in terms of a hyperbolic function: Part 2 of 4.

Next video in the series can be seen at:
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Using a different integral calculator the result was c ln(c(s^2+c^2)^.5 + cs) + constant of int. Very close to what was expected but still differs by a c multiplier within the natural log brackets. I'm at a loss. WolframAlpha must require a specific format to make an entry that I am not aware of. Regarding the second calculator I don't know where the multiplier is coming from....did the process multiple times with same result.

bcnubynby
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I believe the result of integration at bottom right is incorrect as the c multiplier is missing. The result I included in my last communication seems to be the correct answer and checks out in that its derivative returns the proper integrand.

bcnubynby
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Should the two “s”s cancel just before the integral in the bottom sought of the screen?

JulieanGalak