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Rationalize the denominator.
sqrt(3xy)/y
To rationalize the denominator, we will multiply the numerator and denominator by a factor that will make the denominator a perfect square inside the square root. We will do this using the fact that we can multiply the radicands of radicals if they have the same index.
If sqrt(a) and sqrt(b) are real numbers,
then sqrt(a)* sqrt(b)= sqrt(ab).
Write as a power
a/b=a * sqrt(12^1y^1)/b * sqrt(12^1y^1)
sqrt(a)*sqrt(b)=sqrt(a* b)
a^m*a^n=a^(m+n)
Now that we have found the factors that will make the radicand of the denominator perfect squares only, we can begin to simplify the quotient. While simplifying, we should remember that all variables are positive, so sqrt(a^n) = a.
Split into factors
Commutative Property of Multiplication
a^m*a^n=a^(m+n)
Commutative Property of Multiplication
sqrt(a^2)=a
Multiply
a/b=.a /12./.b /12.