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Why we consider √4=+2 not -2 although (-2)²=(2)²=4? Please help me.
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Why we consider √4=+2 not -2 although (-2)²=(2)²=4? Please help me.
we consider +2 in specific cases like when the question comes to that of age we can't take it as negative... but if nothing is mentioned in the question we consider both.... but if the question is specified then we consider which is suitable
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Why we consider √4=+2 not -2 although (-2)²=(2)²=4? Please help me.
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