Question

What is the simplest form of the expression √1/144?

Answer 1

√ (1/144) = 1/12 
Because √1 = 1 ; √144 = 12 
⇒ C

Answer 2

$\sqrt{\frac{1}{144}} = \frac{\sqrt{1}}{\sqrt{144}} = \frac{1}{12}$

The answer is C.