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avatar+239 

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

 Aug 3, 2022
 #1
avatar
+1

f(x) simplifies to x, so the range is all real numbers.

 

In interval notation, (-inf,inf).

 Aug 3, 2022
 #2
avatar+117852 
+2

The domain is all real numbers

The range is all real numbers greater or equal to 0

 Aug 3, 2022
 #3
avatar+113 
+1

Could there also be some complex numbers involved here?

 Aug 3, 2022
edited by tuffla2022  Aug 3, 2022
 #4
avatar+124596 
+2

Note that    sqrt (x^2)  can be defined as   l x l

 

The range of this  function is  [ 0, inf)

 

 

cool cool cool

 Aug 3, 2022

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