RE: math tard, Help
June 28, 2015 at 5:18 am
(This post was last modified: June 28, 2015 at 5:23 am by robvalue.)
Hey, that's sneaky!
The dodgy step has to be sqrt(1/-1) = sqrt(1)/sqrt(-1) because it's not true!
Hmm...I've never come across this before! Splitting the square root clearly isn't as simple as with real numbers. Of course sqrt(1) can be -1 as well, or sqrt(-1) can be -i, which would balance the equation above. There must be a more robust way to address it though. Always have to be careful with roots.
The dodgy step has to be sqrt(1/-1) = sqrt(1)/sqrt(-1) because it's not true!
Hmm...I've never come across this before! Splitting the square root clearly isn't as simple as with real numbers. Of course sqrt(1) can be -1 as well, or sqrt(-1) can be -i, which would balance the equation above. There must be a more robust way to address it though. Always have to be careful with roots.
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Index of useful threads and discussions
Index of my best videos
Quickstart guide to the forum