#Im suck on this problem, any tips help

35 messages · Page 1 of 1 (latest)

tropic pendant
tender ruinBOT
tropic pendant
green kindle
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,rccw

cloud mossBOT
green kindle
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@tropic pendant you didnt calculate the derivative of 1/(2x) properly

tropic pendant
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Thanks

tropic pendant
green kindle
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where does the 4 in the denominator come from

tropic pendant
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I forgot to chain rule

green kindle
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thats one way to do it, yea

tropic pendant
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Should be -1/2x^2 right

green kindle
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yea

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an easier way is

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derivative of 1/x is -1/x^2

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so derivative of half of that is -1/(2x^2)

tropic pendant
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Thanks I didn’t think of it like that

green kindle
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the integral from there is easy and your method will work

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.solved
you should get ||31/48||
lmk if you get stuck again

tender ruinBOT
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Solved

Post marked as solved by @green kindle.

Use .unsolved if this was a mistake.

tropic pendant
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Any idea what I’m doing wrong @green kindle

green kindle
tropic pendant
green kindle
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I can see you skipped a step moving that 1 + into the ()

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Id do the same honestly

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but make sure you show more steps to make sure that it does work out

tropic pendant
green kindle
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alr Ill assume you did show the steps then on that other page

tropic pendant
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yes

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Got 55/48

green kindle
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not how these cancel

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you shouldve gotten $x^2+\frac1{x^2}$ instead

cloud mossBOT
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mtt07734

tropic pendant
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finally figured it out

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took long enough