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# -1 = 1? watch

help me to disprove it while accepting the square of a negative number
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2. (Original post by cmark)
help me to disprove it while accepting the square of a negative number
Look at line 2, already a mistake (not the only one), it should be:

Then see how the rest of the lines make the same mistake.
3. I think it is because the square root of -1 is rt(-1) or -rt(-1) so when you make it to the end, you should get +/- (-1) = +/- (1) if you include the +/- sign throughout rather than only taking the "positive" value of rt(-1)
4. (Original post by BobFredric)
I think it is because the square root of -1 is rt(-1) or -rt(-1) so when you make it to the end, you should get +/- (-1) = +/- (1) if you include the +/- sign throughout rather than only taking the "positive" value of rt(-1)
Sup bob

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