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Offline King Without A Crown

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In desperate need of someone who knows calculus
« on: October 01, 2009, 12:34:55 am »
So i'm first year at university but this is a grade twelve calc course. does anyone have any basic knowledge of calculus they might be able to give me a hand??

 Let f(x) = (4x^2-1)^2. Find the points on the graph of f(x) where the slope of the tangent
line is 0.

that's the starter. I'm offering moneys and or tech if needed for the answers to that and several more questions ASAP like im going to be on for the next several hours and checking frequently. Please Help



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In desperate need of someone who knows calculus
« Reply #1 on: October 01, 2009, 12:39:30 am »
http://www.ualberta.ca/~jies/Mat%201339/1339CalVecAss1.pdf

thats the link to the site if anyone can help



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In desperate need of someone who knows calculus
« Reply #2 on: October 01, 2009, 01:26:41 am »
lol calculus. You're fucked.
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In desperate need of someone who knows calculus
« Reply #3 on: October 01, 2009, 01:41:21 am »
i know



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Offline Thunder Strike

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In desperate need of someone who knows calculus
« Reply #4 on: October 01, 2009, 06:38:15 am »
The answer is D, .

Offline Jenne

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In desperate need of someone who knows calculus
« Reply #5 on: October 01, 2009, 08:50:25 am »
Just take the derivative, and then set the equation equal to 0 and solve for x.  Then put that value back into the original equation to solve for y.  First Derivative Test

If you then need to know if its a crest or a trough, take the 2nd derivative.  If I remember correctly, you insert the previous x value and solve.  If it's positive, it's concave up ( a trough) and if it's negative, its concave down ( a crest).  If there is no answer, then its an inflection point.  Second Derivative Test

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« Last Edit: October 01, 2009, 08:55:27 am by Jenne »

Offline Leo

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In desperate need of someone who knows calculus
« Reply #6 on: October 01, 2009, 09:39:22 pm »
^Pretty much what he said. I'm taking Calc I right now and we learned this today.

Just take the derivative and then solve for 0. Something like that, but I don't feel like checking right now.
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In desperate need of someone who knows calculus
« Reply #7 on: October 02, 2009, 02:34:34 pm »
You should remember it better than me then.  It's been 15 years since I took intro to Calc.

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« Reply #8 on: October 02, 2009, 03:48:03 pm »
Like I said, sounds about right. It usually takes me a day or two to fully grasp a new concept.
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In desperate need of someone who knows calculus
« Reply #9 on: October 02, 2009, 07:40:13 pm »
do I have to go gay to get some good head around here


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