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You are not logged in. #1 20110909 20:35:04
Proofwe had a test and i got these three numbers wrong because i really dont understand a single thing about it and im still in grade 9. and since it bugging me i want to know how to do these things. Thanks ahead! #2 20110909 20:59:58
Re: ProofHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #3 20110909 21:08:59
Re: Proofokay thanks, 1 and 2 have fractions, i'll try to re write it again #4 20110909 21:15:27
Re: Proof1) Prove: if n<0 and m= mn/m+n , 1<m<0 or m>1 #5 20110909 22:28:59
Re: Proofhi bobbym 1<m<0 or m>1 and 2) Given and m>n>p Prove: the possible value of x is Bob Last edited by bob bundy (20110909 22:33:28) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #8 20110910 02:22:03
Re: Proof
fromwodehouse, Signature line: I wish a had a more interesting signature line. #9 20110910 18:09:06
Re: Proofhi fromwoodhouse, but we know from the case that m and 1 + m > 0 so Now consider the alternative case that m < 0 That means we can replace m with m this time we know 1  m > 0 as m < 0 so If a product is negative then one factor must be + and one must be  so either m > 0 and (m + 1) < 0 but this contradicts the assumption that m < 0 or m < 0 and (m + 1) > 0 which leads to 1 < m < 0 Now to look at number (2). See next post. Hope that helps Bob Last edited by bob bundy (20110910 18:17:33) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #10 20110910 18:22:38
Re: Proofhi again, and So put these together and you get what you wanted. Now for (3). edit: Many hours later. I cannot do this one yet. I've put out a general request for more brains. Bob Last edited by bob bundy (20110911 01:38:52) You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #11 20110911 22:13:11
Re: ProofHi;
By Muirheads inequality: Therefore it is not mandatory that this can be done by the AMGM. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #12 20110912 04:29:28
Re: ProofThis is for grade 9 and the other two were fairly straight forward. Could the question be: You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #13 20110912 04:38:06
Re: ProofHi Bob;
Not if you have In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #15 20110912 06:06:04
Re: ProofIt is okay. I am not sure about the problem either. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #16 20110912 06:31:20
Re: Proofhi guys The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #17 20110912 06:42:03
Re: ProofHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #18 20110912 06:43:28
Re: Proofwhy not? The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #19 20110912 06:46:21
Re: ProofHi;
Try a = 2, b = 2, c = 1. You are okay after A) Mistake made in B. It was a pretty good idea though. In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #21 20110913 06:47:58
Re: Proofwhat is muirheads' inequality? The limit operator is just an excuse for doing something you know you can't. “It's the subject that nobody knows anything about that we can all talk about!” ― Richard Feynman “Taking a new step, uttering a new word, is what people fear most.” ― Fyodor Dostoyevsky, Crime and Punishment #22 20110913 07:22:34
Re: ProofHi; In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. 