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OpenStudy (anonymous):
what is the domain of the function y= square root of x squared minus 4
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OpenStudy (amistre64):
sqrt(x^2 -4) ? or: sqrt(x^2) -4 ??
OpenStudy (amistre64):
at first glance, id say the domain of the first one is: (-inf,-2] OR [2,inf)
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