A community for students.
Here's the question you clicked on:
 0 viewing
anonymous
 3 years ago
What is one example of an irrational number and a rational number?
anonymous
 3 years ago
What is one example of an irrational number and a rational number?

This Question is Closed

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0A rational is a number which could be written in the form of p/q or fraction. For Example \[\sqrt{4}\] = 2 which is understood 4/1. So \[\sqrt{4}\] is a rational number and \[\sqrt{3}\] is an irrational number.

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0To prove that a number is irrational we usually assume it is rational and then prove it leads to a contradiction.

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.0also a rational number can be written as a fraction e.g. 2/3 whereas an irrational cannot many square roots are irrational like sqrt2 , sqrt5, sqrt7

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0Any squareroot of a prime is irational

cwrw238
 3 years ago
Best ResponseYou've already chosen the best response.0right  also square root of some even numbers like 8, 12

anonymous
 3 years ago
Best ResponseYou've already chosen the best response.0That you get by writing those numbers as a multiplication of primes: 8=2*2*2, 12=2*2*3 and what is left in the squareroot is a prime, therefore irrational
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.