asked 104k views
5 votes
Determine whether each expression is meaningful as  a real number  yes or no?   -√9

1 Answer

4 votes

Yes\ -\sqrt9\ is\ real\ number\\\\-\sqrt9=-3\ is\ integer\ number\\\\-√(a)\in\mathbb{R}\ for\ any\ a\geq0
answered
User Whadar
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