swin2013
FTC and definite integrals?
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swin2013
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integral from (0 to 2) of the function (x^3/3 +2x) dx
swin2013
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isn't the anti derivative x^2 + 2?
swin2013
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@zepdrix
zepdrix
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No the `derivative` is x^2+2.
I think you went in the wrong direction :)
swin2013
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Ohh ok. so i need to take the derivative -_- lol
zepdrix
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You do? :o
zepdrix
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Do you know how to apply the `Power Rule` to integrals? :)
swin2013
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well it says to evaluate using FTC. yea it's like when you subtract 1 from the exponent
swin2013
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something like that hahaha
swin2013
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i meant add lol
swin2013
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and divide by the exponent
zepdrix
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`Power Rule for Derivatives`:
~Multiply by the power.
~Decrease the power by 1.
`Power Rule for Integration`:
~Increase the power by 1.
~Divide by the power.
Ok good, seems you understand already :)
swin2013
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lol yea :) hopefully i don't mess that process up ahahaha
swin2013
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x^4/4 +x^2?
zepdrix
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One tiny boo boo, you forgot about the 3 under the first term.
swin2013
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for the x^3/3 part?
zepdrix
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ya
zepdrix
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you `gain` a 4 on the bottom, it doesn't change your 3 to a 4 silly!
swin2013
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OOPS! x^4/4*3
swin2013
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i got 16/3
zepdrix
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That's what I'm coming up with also, I think that's correct!
swin2013
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thanksssssssssss!