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CBSE Class 10 Answered

why do we everytime put a plus minus sign in front of root sign   
Asked by pras.rangi | 07 Aug, 2021, 09:06: PM
answered-by-expert Expert Answer
Any integers a and -a has the same square which is a2
So, square root of a2 is a and -a.
Thus, we put plu and minus in front of root sign.
Answered by Renu Varma | 08 Aug, 2021, 03:37: PM

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