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compute the range of the function \(f(x) = \sqrt{x^2}\)

 Aug 8, 2019
 #1
avatar+103148 
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f(x)  =  √[x^2]

 

Note, Logic,  that   √[x^2]    = l x  l

 

And the range of   l x l    = [ 0, inf)

 

cool cool cool

 Aug 9, 2019

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