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Raithed
China7078 Posts
![[image loading]](http://i30.tinypic.com/9qv6n8.jpg) I can half-see it, but still can't. I know after that, I can do the conjugate to get the final answer of simplification. But it's from the two functions I couldn't get it. So f(x) gets the 1/sqr(x-1) into it, but what about f(2) ? I don't get that, at all.   | ||
micronesia
United States24753 Posts
Edit: lol I'll explain hold on Apply the slope formula to your function f(x) as though it is y(x) Then... (note below Mikeymoo already has it and is correct) | ||
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fight_or_flight
United States3988 Posts
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mikeymoo
Canada7170 Posts
f(2) is 1/sqrt(2-1) 1/1 1 | ||
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Raithed
China7078 Posts
On May 20 2008 09:22 fight_or_flight wrote: I don't understand the question....do you not understand how to get from the second to the third line? The substituting actually, it's driving me nuts. | ||
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Raithed
China7078 Posts
On May 20 2008 09:22 mikeymoo wrote: sub 2 as x. f(2) is 1/sqrt(2-1) 1/1 1 I love you. | ||
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fight_or_flight
United States3988 Posts
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micronesia
United States24753 Posts
On May 20 2008 06:40 Raithed wrote: epic fail /asshole | ||
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radar14
United States1437 Posts
you plug in 2 for x into the f(x) equation and the answer is 1 am i missing something here | ||
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micronesia
United States24753 Posts
On May 20 2008 09:26 radar14 wrote: what? you plug in 2 for x into the f(x) equation and the answer is 1 am i missing something here No, he wasn't seeing how if you plug 2 into the function and then plug it into the slope formula you get that result. | ||
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radar14
United States1437 Posts
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micronesia
United States24753 Posts
On May 20 2008 09:29 radar14 wrote: uhh yeah that's pretty sad dude unless you're in like 7th grade or something He was just bm in my blog so the karma explanations works, but let's not be ridiculous. There's nothing wrong with learning this in, say, 12th grade and getting a bit confused; especially if math isn't your thing. | ||
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Raithed
China7078 Posts
On May 20 2008 09:31 micronesia wrote: He was just bm in my blog so the karma explanations works, but let's not be ridiculous. There's nothing wrong with learning this in, say, 12th grade and getting a bit confused; especially if math isn't your thing. lolol I have nothing against you at all, you've helped me in the past with math before so why let one comment in your blog bother you?  | ||
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micronesia
United States24753 Posts
On May 20 2008 09:34 Raithed wrote: lolol I have nothing against you at all, you've helped me in the past with math before so why let one comment in your blog bother you? Ok you are right. The whole point of the blog was to be bm so I really shouldn't complain. | ||
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mikeymoo
Canada7170 Posts
you said you were in EE? | ||
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radar14
United States1437 Posts
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Raithed
China7078 Posts
On May 20 2008 09:37 mikeymoo wrote: lol I see what fanatacist is talking about now... you said you were in EE? I am, LOOOL. Yeah I bug him about Physics all the time, he's bad at explaining Calc though. | ||
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KH1031
United States862 Posts
![[image loading]](http://img245.imageshack.us/img245/6606/n712553303440438394aa3.jpg) | ||
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Raithed
China7078 Posts
On May 20 2008 09:40 KH1031 wrote: LOOOL | ||
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SIUnit
China288 Posts
On May 20 2008 09:40 KH1031 wrote: haha, that just made my day so much better. | ||
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thoraxe
United States1449 Posts
I see how f(2) changed to a 1, but I can't finish the problem to get the final answer. Can someone finish it? | ||
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randombum
United States2378 Posts
On May 20 2008 10:06 thoraxe wrote: yay, first math problem in TL that I semi-understand. I see how f(2) changed to a 1, but I can't finish the problem to get the final answer. Can someone finish it? You plug f(x) as what f(x) is defined as, then you - f(2) Which is one. So now you have f(x)-1/(x-2) Hope that makes sense. | ||
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Raithed
China7078 Posts
On May 20 2008 10:06 thoraxe wrote: yay, first math problem in TL that I semi-understand. I see how f(2) changed to a 1, but I can't finish the problem to get the final answer. Can someone finish it? You gotta do the conjugate when you get: (1 - sqrt. (x - 1)) / (x-2) sqrt. (x-1) * (1 + sqrt. (x - 1)) / (1 + sqrt. (x - 1)), you can solve from there, it's easy from that. It's messy though. I have a hard time visualizing it, I just write the numbers out on paper. | ||
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micronesia
United States24753 Posts
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