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Mathematics 21 Online
OpenStudy (anonymous):

-√9

OpenStudy (vijay):

-3 or + 3

OpenStudy (anonymous):

\[\pm3\]

OpenStudy (anonymous):

- 3

OpenStudy (anonymous):

only -3

OpenStudy (anonymous):

not 3

OpenStudy (anonymous):

-3

OpenStudy (anonymous):

\[-\sqrt{9}=\sqrt{-1}\times \sqrt{9}\]\[i \times \sqrt{9}=3i\]

OpenStudy (zarkon):

\[-\sqrt{9}=-3\]

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