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Compute the range of the function $f(x) = \sqrt{x^2}$.

 Feb 5, 2021
 #1
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+1

We can only  get  a 0   or   a positive from  a positive  square root

 

And  note  that  sqrt (x^2)  is defined as    absolute  value  (x)

 

So....the range  is   [ 0 , infinity )

 

 

cool cool cool

 Feb 5, 2021

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