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You are not logged in. #1 20120729 23:57:25
Equation Involving RadicalsHello! I'm here again. Please teach me how to solve equation like this one: #2 20120730 00:02:22
Re: Equation Involving RadicalsHi 295Ja; 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. #4 20120730 00:13:36
Re: Equation Involving RadicalsHi; 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. #6 20120730 00:25:33
Re: Equation Involving RadicalsHi; 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. #8 20120730 00:42:56
Re: Equation Involving RadicalsHi 295Ja; 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. #9 20120730 01:14:01
Re: Equation Involving RadicalsHi 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 #11 20120730 01:37:05
Re: Equation Involving Radicals17:36pm here in Serbia. 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 #13 20120730 02:48:19
Re: Equation Involving RadicalsHave a nice day, too. 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 #14 20120730 04:08:31
Re: Equation Involving Radicalshi 295Ja square each side simplify and rearrange square again simplfy factorise Now why is it necessary to check these? consider a simple example. This quadratic has two solutions y = 5 and y = 5. The act of squaring has made an extra answer. So could x = 3 be a solution? So x = 3 works. Could x = 2 be a solution? where i is the square root of minus 1. (if you've not yet met complex numbers just reject 2 as you 'cannot square root a negative') So there is one answer, x = 3 Bob ps. Stefy; My turn. That should be You'll find this then leads to the same quadratic as mine. You cannot teach a man anything; you can only help him find it within himself..........Galileo Galilei #15 20120730 05:24:26
Re: Equation Involving RadicalsHi Bob 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 20120730 13:23:18
Re: Equation Involving RadicalsIt's now 11:24 in the morning here. Last night, something went wrong with the internet connection due to the typhoon so only now was I able to see the other replies. Last edited by 295Ja (20121203 23:13:02) #19 20120730 17:47:11
Re: Equation Involving RadicalsHi bob bundy! Last edited by 295Ja (20121203 22:53:52) #20 20120730 17:49:47
Re: Equation Involving RadicalsHi Bob 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 20120730 23:06:18
Re: Equation Involving RadicalsI never said tachers new everything. It just seems logical. Even our book says it is better if we did itbthat way, so that we are sure both sides are positive. 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 #24 20120731 19:25:04
Re: Equation Involving RadicalsHi bobbym 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 #25 20120801 00:25:01
Re: Equation Involving RadicalsHi;
Spurious solutions are detected by plugging in. 2 does not work. 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. 