Ex: Find the Arc Length of a Quadratic Function

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This video provides an example of how to determine the arc length of a quadratic function using integration. The integral is evaluated using a graphing calculator and an integration formula.
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how is u = 8 when solving the long formula with u???

alexisaquino
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"An integration formula"... which integration formula?!

molagz_bawlz
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When you are solving the equation, why does u=8 and u=4?? Wouldnt u equal the new limit of integration (8 or 4) times 4 since u=4x?

JustinHille
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I think the function is 2x^2 + 3 not -3 ?

fisherpearse
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Sorry do you have a video regarding how to find the derivative of f(x). I have a quadratic in the form of ax^2 +bx+c and i'm really lost on the step....

pengchengfang
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What is the name of the formula that you used to solve by hand?

Nah-id-win
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May use simpson rule for numerical integration...short and fast very close value

gsatchu