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What is the domain of f(x) = sqrt x - 7? Help!!
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all values of x that will make the expression inside the square root sign nonnegative. Is it \[f(x)=\sqrt x-7\]or \[f(x)=\sqrt{x-7}\]
its the second one
ok... :D now let see. from what i have said previously, we must have \[x-7\ge0\]then\[x \ge 7\]
that's what I got lol
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