Write a form of 1 that you can use to rationalize the denominator of the expression $\frac{8}{\sqrt[3]{4}}$83√4 . Rationalizing factor:
Question
Write a form of 1 that you can use to rationalize the denominator of the expression .
Rationalizing factor:
Solution
To rationalize the denominator of the expression , we need to multiply both the numerator and the denominator by a form of 1 that will eliminate the cube root in the denominator.
The cube root of 4 is 2^(2/3), so we need to multiply by 2^(1/3) to get a whole number in the denominator.
The rationalizing factor is therefore 2^(1/3)/2^(1/3), which is just a fancy form of 1.
So, we multiply the original expression by this factor:
* =
This simplifies to =
So, the rationalized form of the expression is .
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