In this question , we have to find positive and negative square roots of
[tex] \frac{121}{4900} [/tex]
Square root always occurs in pair, one is positive and other is negative.
And square root of 121 is 11 and square root of 4900 is 70.
Therefore square roots of
[tex] \frac{121}{4900} [/tex]
are
[tex] -\frac{11}{70} , \frac{11}{70} [/tex]
