Question

how to simplify sqrt of 18/4

Answer 1

Divide by the gcd to get \[ \sqrt {\frac{9}{2}} \] then \[ \frac{3}{\sqrt {2}} \]

Answer 2

* \[\pm \]

Answer 3

\[3\sqrt{2}/2\]

Answer 4

yes, if you want to "rationalize the denominator".

Answer 5

how it comes?

Answer 6

you mean how do you get from\[3/\sqrt{2}\rightarrow3\sqrt{2}/2 \]?
Like this:\[(3/\sqrt{2})(\sqrt{2}/\sqrt{2})=3\sqrt{2}/2\]