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Why is it that when you take the squre root of a function that is squared you get an absolute value?

User Walruz
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Answer and explanation :

When we square any number then its gives absolute value for example even when we square the negative numbers it will given positive , that is absolute value

So we can conclude that square of any number is absolute number

And then is we take square root of that absolute number it will always positive and absolute

User Andong Zhan
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