answersLogoWhite

0


Best Answer

You can. but it is preferred if you do not. This is because it is generally easier to estimate the value with a radical in the numerator than in the denominator.

For example, given that sqrt(2) = 1.414, approx estimating the value of 3/sqrt(2) is not easy since it requires division by 2.414 However, 3/sqrt(2) = 3*sqrt(2)/2 = 3*1.414/2 = 3*0.707 = 2.121 - a calculation that any half-way competent pupil an carry out in their head.

User Avatar

Wiki User

7y ago
This answer is:
User Avatar

Add your answer:

Earn +20 pts
Q: Why can you not have a radical in the denominator?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What is the importance of the conjugate in rationalizing the denominator of a rational expression that has a radical expression in the denominator?

To eliminate the radical in the denominator.


When is a radical in simplest form?

when there is no radical in the denominator


When dividing radicalsif there is a radical in the denominator you have to?

Rationalise the denominator.


What is it called to get the radical out of the denominator in algebra?

Rationalising the denominator.


Does a radical in its simplest from contain a radical in its denominator?

No. One of the rules for "simplest form" is that there may be no radical in the denominator. To fix this, multiply top and bottom of the fraction by the radical denominator. For example, ( 1 / √2) = (1 / √2)(√2 / √2) = (√2 / 2)


What is the process called of removing a radical from the denominator?

It is called rationalisation [of the denominator].


What is the process called of eliminating a radical fom the denominator?

It is called rationalising the denominator.


What is The process called of removing a radical from the denominator in order to simplify the expression?

"rationalizing" the denominator


What do you call the process of removing a fraction from the radicand or radical from the denominator?

It is called rationalising the denominator.


What do you do if you have a radical in your denominate and your numerator?

It isn't clear what, exactly, you want to achieve. To write a fraction in standard form, it is customary to leave no radical in the denominator; in this case, for example, if you have square root of 2 in the denominator, you would multiply top and bottom by square root of 2, precisely to get rid of the radical in the denominator.


if you have a radical in the denominator what does it look like when your done?

does it stay a fraction


You can only use conjugates to rationalize the denominator when the denominator contains one radical term?

No, you can also use conjugates with more than one radical term. For example, if the denominator is root(2) + root(3), you can use the conjugate root(2) - root(3) to rationalize the denominator.