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0 pointssidek15y ago0 comments

Sometimes square root is assumed to refer to the positive one. I assume that was the case here.

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On every notable standardized math test in the US, and on any commonly used calculator, a square root is non-negative. Another example: http://www.wolframalpha.com/input/?i=sqrt(x)

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0 pointssidek15y ago0 comments

Sometimes square root is assumed to refer to the positive one. I assume that was the case here.

0 comments

gmichnikov15y ago

On every notable standardized math test in the US, and on any commonly used calculator, a square root is non-negative. Another example: http://www.wolframalpha.com/input/?i=sqrt(x)

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j / k navigate · click thread line to collapse