Dividing by variable when solving algebraic equation

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Dividing by variable when solving algebraic equation

robvalue Offline

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#49

RE: Dividing by variable when solving algebraic equation

October 27, 2016 at 4:02 am (This post was last modified: October 27, 2016 at 4:05 am by robvalue.)

The essential problem is that mapping 1 to sqrt(1) isn't one to one, unless you force the result to be positive. -1 also maps to sqrt(1). To keep the mapping consistent, when evaluating the split radicals it should be -i * i = 1

I'm not actually sure if there's a formal rule for dealing with this, it's not come up for me.

It's one of the easiest ways to slip up and one of the more confusing aspects of maths.

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Messages In This Thread

Dividing by variable when solving algebraic equation - by Grandizer - October 25, 2016 at 3:35 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 25, 2016 at 3:40 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 25, 2016 at 3:47 am

RE: Dividing by variable when solving algebraic equation - by Longhorn - October 25, 2016 at 7:48 am

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 25, 2016 at 8:12 am

RE: Dividing by variable when solving algebraic equation - by Aegon - October 25, 2016 at 9:39 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 25, 2016 at 10:28 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 25, 2016 at 8:13 am

RE: Dividing by variable when solving algebraic equation - by LastPoet - October 25, 2016 at 8:35 am

RE: Dividing by variable when solving algebraic equation - by Fireball - October 25, 2016 at 9:54 pm

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 25, 2016 at 9:58 pm

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 1:52 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 26, 2016 at 1:59 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 26, 2016 at 2:16 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 26, 2016 at 2:31 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 26, 2016 at 2:40 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 26, 2016 at 2:42 am

RE: Dividing by variable when solving algebraic equation - by Longhorn - October 26, 2016 at 11:06 am

RE: Dividing by variable when solving algebraic equation - by Fireball - October 26, 2016 at 3:47 pm

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 25, 2016 at 10:00 pm

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 2:01 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 26, 2016 at 2:14 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 2:23 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 2:20 am

RE: Dividing by variable when solving algebraic equation - by Arkilogue - October 26, 2016 at 2:32 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 26, 2016 at 2:48 am

RE: Dividing by variable when solving algebraic equation - by FallentoReason - October 26, 2016 at 3:04 am

RE: Dividing by variable when solving algebraic equation - by Longhorn - October 26, 2016 at 11:12 am

RE: Dividing by variable when solving algebraic equation - by LastPoet - October 26, 2016 at 4:01 pm

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 2:59 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 26, 2016 at 4:23 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 7:29 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 7:37 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 12:44 pm

RE: Dividing by variable when solving algebraic equation - by Whateverist - October 26, 2016 at 11:34 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 26, 2016 at 12:15 pm

RE: Dividing by variable when solving algebraic equation - by Kernel Sohcahtoa - October 27, 2016 at 1:32 am

RE: Dividing by variable when solving algebraic equation - by Jesster - October 27, 2016 at 2:06 am

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 27, 2016 at 2:09 am

RE: Dividing by variable when solving algebraic equation - by Jesster - October 27, 2016 at 2:12 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 2:36 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 27, 2016 at 2:41 am

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 27, 2016 at 2:52 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 2:55 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 27, 2016 at 3:05 am

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 27, 2016 at 3:39 am

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 27, 2016 at 3:44 am

RE: Dividing by variable when solving algebraic equation - by mihoda - October 30, 2016 at 11:48 pm

RE: Dividing by variable when solving algebraic equation - by Grandizer - October 30, 2016 at 11:56 pm

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 3:17 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 4:02 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 27, 2016 at 5:44 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 27, 2016 at 5:56 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 6:29 am

RE: Dividing by variable when solving algebraic equation - by Alex K - October 27, 2016 at 6:48 am

RE: Dividing by variable when solving algebraic equation - by Kernel Sohcahtoa - October 31, 2016 at 1:06 am

RE: Dividing by variable when solving algebraic equation - by robvalue - October 27, 2016 at 7:01 am

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