is it the gradient of the slope at x=5 or something that weve to find? |
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I liked XXSomeGuyXX's thread, but he put the rule in that it had to be high school level. This one is for more advanced mathematics. Same rules apply as the other thread, but here you can post ANY equation (as long as it's solvable) |
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Last edited by ninja9578; 02-15-2009 at 08:28 PM.
is it the gradient of the slope at x=5 or something that weve to find? |
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The value of the slope at x = 5. Rise over run. |
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no idea what that means so im going to do what i think it is |
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ok, im pretty darn sure i iether did the wrong thing, or i made a mistake somewhere, coz im shit at maths, but this is what i got. |
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Simple quotient rule, I believe. vdu/dx is 0 at x=5. The denominator tends to 0 as x tends to 5, and the numerator, x(9x3 +x2 -10x +25) has no (x-5) factor so we have an asymptote? |
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You've got one polynomial, u = 9x3 +x2 -10x +25, divided by another, v = x -5. |
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y = (9x^3 + x^2 - 10x + 25) / (x - 5) |
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Last edited by ThreeLetterSyndrom; 02-15-2009 at 10:12 PM.
no, i brougt the bottom of the right hand side over to the left(to make things easier for me) then seperately brough x over to the right then -5 over or something like that, it was a bit more complicated but. theni simplified it a bit then diferentiated it, then substituted x = 5 in and i got that answer. |
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haha I did this stuff senior year of hs Yes even if you take the derivitive it is divided by 0...unless this is another one of those rules I have forgotten! |
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A warrior does not give up what he loves, he finds the love in what he does
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Uhm... that part isn't calculus, it's discrete algebra. It still has a slope. |
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lulz ninja. now its much easier! its just derivative of x-5 = 1 so the slope is 1 everywhere |
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A warrior does not give up what he loves, he finds the love in what he does
Only those who attempt the absurd can achieve the impossible.
...you do need the quotient rule for the fudged version. |
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yes it did come to y(x-5), but that is also yx-5y, so then i brought over 5, then i brought over x. i know i didnt have to make it as long winded as that, but i only did it becasue it was easier to think about it that way. it doesnt matter anyway, becasue it was the qrong answer and i cant do this new one either coz its pretty much the same so im not going to attempt it, im not going to further embarres myself |
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Yay, right. Sorry I screwed up the math |
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x^2 + y^2 dx/dy = 1 |
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Last edited by tkdyo; 02-15-2009 at 10:50 PM.
A warrior does not give up what he loves, he finds the love in what he does
Only those who attempt the absurd can achieve the impossible.
ninja are you gonna do mine or not? |
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You integrate functions, not equations. |
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sorry, its just that im used to intergrating whenever i see that S thing |
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yeah I thought the s meant integrate... |
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A warrior does not give up what he loves, he finds the love in what he does
Only those who attempt the absurd can achieve the impossible.
It does. And you can't integrate an equation. Think about the kind of things you integrate; they're expressions. |
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