politexnik
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- Joined
- Jun 28, 2023
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Good afternoon, could you tell if we square the root, will we get the module ( (√x)^2=|x| )?
Reverse the order:Good afternoon, could you tell if we square the root, will we get the module ( (√x)^2=|x| )?
Yes, the radix or radical sign \(\displaystyle \left(\sqrt{ }\right)\) is defined as the principal square root so it is always positive.Good afternoon, could you tell if we square the root, will we get themodulemodulus ((√x)^2=|x| )?
There's one exception: The principal square root of zero (sometimes described as the "trivial case", but still worth mentioning).principal square root is always positive.