Question

Number 23 please show me how to do it and the answer

Answer 1

$23)\\\\-\sqrt{\frac{1}{121}}=-\frac{\sqrt{1}}{\sqrt{121}}=-\frac{1}{11}$

Answer 2

- √ (1/121)

You can break up the square root of a fraction like this: √(1/121) = √1 / √121 .

At this point, it helps if you know that 121=11x11, or  √121 = 11.

So, the original expression is

-  ( √1 / √121 ) = - ( 1 / 11 )   and there you are.