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Andy Bonilla
Mathematics
2 July, 08:32
For what values of x is √x+3 defined?
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Joaquin Herman
2 July, 08:44
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√x + 3 is a pair of real numbers for all values of 'x' that are zero or greater.
√ (x + 3) is a pair of real numbers for all values of 'x' that are - 3 or greater.
For other values of 'x', there is a whole system of so-called imaginary numbers
that you will learn about in future math classes. With those, you'll be able to
handle square roots of things that may sometimes be negative.
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