How do you rationalize the denominator and simplify #1/sqrty#?
Mathematicians do not like a root to be in the denominator if at all possible. Consequently you should always look to remove it if able. Unless instructed otherwise.
Multiply by 1 and you do not change the value. However the value of 1 comes in many forms so you may change the way something looks without changing its intrinsic value.
Multiply by 1 but in the form of
Hence the rationalised denominator condition is: