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You are not logged in. #1 20060105 13:42:19
DifferentiationHi guys and girls, long time no see. I've been away for the Christmas holidays (away from my computer at least) but now I am back to bug you with more laughably simple questions! Aloha Nui means Goodbye. #2 20060105 14:29:09
Re: DifferentiationOn the last one, you need to subtract, not add, 1, so you get: "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #3 20060105 14:30:40
Re: DifferentiationI was subtracting 1... but from +4 and not 4 Aloha Nui means Goodbye. #4 20060105 14:34:37
Re: Differentiationin a question like y = 3x^4, do you multiply the 4 by the 3 to make dy/dx = 12x^3? Aloha Nui means Goodbye. #5 20060105 15:12:39
Re: DifferentiationYes, but it is normally stated in a different way, and thus involving less theorms. "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #6 20060105 15:20:49
Re: DifferentiationThanks again, one final question, the only one left that I am unsure of my workings: Last edited by rickyoswaldiow (20060105 16:10:45) Aloha Nui means Goodbye. #7 20060105 20:45:33
Re: Differentiation. / IPBLE: Increasing Performance By Lowering Expectations. #8 20060107 09:10:22
Re: DifferentiationI'm a little stuck again: Aloha Nui means Goodbye. #9 20060107 15:37:53
Re: DifferentiationNope, you're just plugging in wrong. Last edited by Ricky (20060107 15:38:26) "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #10 20060109 15:14:51
Re: DifferentiationCould you explain how to work out a fraction over a fraction?
I've never actually been taught this Aloha Nui means Goodbye. #11 20060109 15:41:00
Re: Differentiationin addition, could you check this (I think the book has put the answers in the wrong order) Aloha Nui means Goodbye. #12 20060109 16:48:49
Re: Differentiation(a / b) / (c / d) = (a / b) * (d / c) "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." #13 20060109 18:22:31
Re: DifferentiationWhy does 1/(4x) = 4^1 * x^1? I was taught to recirpocal i.e. simply bring the bottom of the fraction to the top and change the sign of the power. Why have you split it into 4^1 * x^1? Last edited by rickyoswaldiow (20060109 18:25:40) Aloha Nui means Goodbye. #14 20060110 02:28:24
Re: DifferentiationJust to clarify: Now we have: This isn't exactly clear, so let's write it in a different way: Or: Or even: Is that clearer? "In the real world, this would be a problem. But in mathematics, we can just define a place where this problem doesn't exist. So we'll go ahead and do that now..." 