42.9k views
11 votes
Find an example of two irrational numbers a and b for which a≠b and a/b is rational.

User Steverb
by
8.2k points

1 Answer

11 votes

Answer:

Yes.

Here’s an easy (and cheap) one:
\\\\\sqrt 2\\-\sqrt 2

In fact, I can find a formula for them.

The two numbers will always be of the form:


x_1 =a+b\sqrt c \\x_2 =a-b\sqrt c \\

A and B are rational

C is rational and not a perfect square of a rational number

These are irrational because the square root will not resolve to a rational number.

12=(+√)(−√)=2−(√)2=2−2 . Looks rational to me.

1+2=+√+−√=2 , which also is rational.

Hope this helped!

User Mohamed Zayani
by
8.1k points