SOLUTION: Is sqrt (x^2) = x an identity (true for all values of x)?
Explain your answer
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Question 62967: Is sqrt (x^2) = x an identity (true for all values of x)?
Explain your answer
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Is sqrt (x^2) = x an identity (true for all values of x)?
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No.
sqrt(-x)^2 is not equal to -x
sqrt(-4)^2 =sqrt16=4
Cheers
Stan H.
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