01:57duration 1 minute 57 seconds
Rationalizing a denominator: Quotient involving a…
Rationalizing a denominator: Quotient involving a monomial
Two quick demonstratoins of a rational expression containing radicals being ratioinalized by multiplication of a form of one to transform a radical in the denominantor to a whole number.
04:04duration 4 minutes 4 seconds
Rationalizing a denominator: Square root of a…
Rationalizing a denominator: Square root of a fraction
This discusses what rationals and irratioinals are, then goes on to demonstrate how to eliminate any radical number in the denominator.