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# Does 1+1=0 ?

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$$\\\mathbf{i}=\sqrt{-1}\\ \sqrt{ab}=\sqrt{a}\times \sqrt{b} \\\textup{So:}\\ 1+1=1+\sqrt{1}\\ =1+\sqrt{(-1)\times(-1)}\\ =1+\sqrt{-1}\times \sqrt{-1}\\ =1+\mathbf{i}\times \mathbf{i}\\ =1\times \mathbf{i}^2\\ =1+(-1)=1-1=0$$

Is there a miscalculation ? Or is 1+1 really equal to 0 ?

EinsteinJr  May 2, 2015

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You can only use the $in this context for text. Plus it only usually lets you do it once per line. It is good to know more than one method to do things because sometimes, for no apparent reason, a command just won't work! Melody May 3, 2015 Sort: ### 7+0 Answers #1 +4664 0 $$\\\:I'm\:possitive\:it\:equals\:Zero\\\You\:made\:LaTeX\:look\:like\:a\:walk\:in\:the\:park\\This\:my\:first\:time\:using\:it$$ MathsGod1 May 2, 2015 #2 +82 +5 Well......I think that you've made a mistake....because $${\mathtt{1}}{\mathtt{\,\small\textbf+\,}}{\mathtt{1}} = {\mathtt{2}}$$ Hawkeye May 2, 2015 #3 +886 0 If you think that all that calculation are wrong, then find a miscalculation. EinsteinJr May 2, 2015 #4 +91451 +5 MathsGod1, you did a good job with that LaTex, Here is another way you could have done it $$\\I'm positive it equals zero (it doesn't by the way)\\ made Latex look like a walk in the park\\ this is my first time using it\\\\ OR\\\\ \\\text{I'm positive it equals zero (it doesn't by the way)}\\ \text{made Latex look like a walk in the park}\\ \text{ this is my first time using it}\\\\ OR\\\\ \\\mbox{I'm positive it equals zero (it doesn't by the way)}\\ \mbox{made Latex look like a walk in the park}\\ \mbox{ this is my first time using it}\\\\$$ HERE IS THE CODE :) \\$I'm positive it equals zero (it doesn't by the way)$\\$made Latex look like a walk in the park$\\$this is my first time using it$\\\\ OR\\\\ \text{I'm positive it equals zero (it doesn't by the way)}\\ \text{made Latex look like a walk in the park}\\ \text{ this is my first time using it}\\\\ OR\\\\ \mbox{I'm positive it equals zero (it doesn't by the way)}\\ \mbox{made Latex look like a walk in the park}\\ \mbox{ this is my first time using it}\\\\ (you will have to take the extra line breaks out, I put them in so it is easier to read) There are a lot of different ways of doing the same things in LaTex, I really do not know why. :/ mbox stands for message box. Melody May 3, 2015 #5 +91451 +5 $$\\\mathbf{i}=\sqrt{-1}\\ \sqrt{ab}=\sqrt{a}\times \sqrt{b}\\ \textup{So:}\\ 1+1=1+\sqrt{1}\\ =1+\sqrt{(-1)\times(-1)}\qquad or \qquad 1+\sqrt{1}\times \sqrt{1}\\ =1+\sqrt{-1}\times \sqrt{-1}\qquad or \qquad 1+\sqrt{1}\times \sqrt{1} \\ =1+\mathbf{i}\times \mathbf{i}\qquad or \qquad 1+1\\ =1\times \mathbf{i}^2\qquad or \qquad 1+ 1\\ =1+(-1) \;\;or\;\; 2\\ =1-1 \;\;or\;\; 2\\ =0 \;\;or\;\; 2$$ 0 can be discounted as an incorrect answer :) Melody May 3, 2015 #6 +4664 +5 Wow thanks Melody for your imput. There are so many ways to leave spaces but i prefer your method with : \: , \; , \quad , \qquad. I'll treasure that and learn from it :) EDIT: I might go with$ $it looks a lot easier than after every word doing a backslash. MathsGod1 May 3, 2015 #7 +91451 +8 Best Answer You can only use the$ in this context for text.  Plus it only usually lets you do it once per line.

It is good to know more than one method to do things because sometimes, for no apparent reason, a command just won't work!

Melody  May 3, 2015

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