A community for students.
Here's the question you clicked on:
 0 viewing
lgbasallote
 4 years ago
Rationalize:
\[\huge \frac{\sqrt{4+h}  2}h\]
lgbasallote
 4 years ago
Rationalize: \[\huge \frac{\sqrt{4+h}  2}h\]

This Question is Closed

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 4+h4 }{ h(\sqrt{4+h}+2) }=\frac{ 1 }{\sqrt{4+h}+2 }\] nomarlly limit question

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0we multiplied by\[\sqrt{4+h}+2\] both num and denominator

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1hmmm...isn't the point of rationalization to remove radicals from the denominator?

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1Well then there were no radicals in the denominator

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1So u wld keep it the way it is

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0imagine if this question was\[\lim_{h \rightarrow 0}\frac{ \sqrt{4+h}2 }{ h }\]

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0you cant just plug h=0 here but in the rationalised one

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1limits in an algebra question? that's morbid.....

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0Rationalizing means to remove the radical from the place it is in...

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1hmmm well u can be asked to rationalize the numerator too

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1now im confused with the contradictions...

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1What are the contradictions?

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1@swissgirl said don't change...now she says change

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1Just use ur own brain _

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1someone's wrong here....wonder who

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0If they ask you to rationalize the fraction, you do these: 1) If the radical is in the denominator — remove it from the denominator. Do not care about the numerator. 2) If the radical is in the numerator — remove it from the numerator. Do not care about the denominator.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ 1 }{ \sqrt{2} }=\frac{ \sqrt{2} }{ 2 }\]

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1i know what happens if it's in the denominator

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1trust me lgba knows how to rationalize a numerator or denomanator

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1the question is if it's in the numerator

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0See how you can't remove the radical from both numerator and denominator?

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0Yes, so move it to the denominator. Do not care about the denominator.

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1my question is not how to rationalize @swissgirl but if it's suppose to be rationalized

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0You can rationalize it, but mathematicians always love if the radical is in the numerator.

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1because what i know is that if it's in the numerator, then it's okay

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0It's better to put radicals in the numerator rather than the denominator.

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1so why put in denominator then?

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ \sqrt{2} }{ 2 }=\frac{ 1 }{ \sqrt{2} }\] these is also called rationalising sometimes it is convinient to write in the dinominatpr eg in the case of a limit

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1Well what i have always learnt was that rationalization=denominator but I have gone online and seen that some do rationalize the numerator too so it all depends what course you are taking and what you see in your the textbook

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0Yup, I saw that you could rationalize the numerator too though it's rare.

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1when i went online, all i saw were unreliable sources on rationalizing numerators

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1http://www.wtamu.edu/academic/anns/mps/math/mathlab/int_algebra/int_alg_tut41_rationalize.htm

ParthKohli
 4 years ago
Best ResponseYou've already chosen the best response.0Never rationalize the numerator unless given a question to perform.

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1http://tutorial.math.lamar.edu/Extras/AlgebraTrigReview/Rationalizing.aspx

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1\[\lim_{x \rightarrow 0} \sqrt x\]seems better than \[\lim_{x \rightarrow 0} \frac 1{\sqrt x}\] @Jonask

swissgirl
 4 years ago
Best ResponseYou've already chosen the best response.1These are both reliable sources

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0how ever if you where asked to do the same function using the first prinsiple you will need to rationalise

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1the links win. can't argue with that.

anonymous
 4 years ago
Best ResponseYou've already chosen the best response.0\[\frac{ \sqrt{x+h}\sqrt{x} }{ h }\]ration. \[\frac{ 1 }{ \sqrt{x+h}+\sqrt{x} }\]

lgbasallote
 4 years ago
Best ResponseYou've already chosen the best response.1square roots in denominators really look weird...
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.