# irrational numbers - HELP!!

• Jul 27th 2005, 07:17 AM
notamathnerd
irrational numbers - HELP!!
:confused: HELP!! :confused:

What operations are available to irrational numbers?

Is sqrt of 3 times sqrt of 3 = 3 and a way to multiply irrational numbers?

Is sqrt of 3 divided by the sqrt of 3 = 1 and a way to divide irrational numbers?

• Jul 27th 2005, 07:46 AM
Math Help
irrational numbers have all mathematical operations available to them.
pi for example is irrational.

you can add and subtract pi
you can divide and multiply pi
you can squareroot pi and you can pi^x
any mathematical operation you can do to a rational number you can also do to an irrational.

sqrt(3) / sqrt(3) = 1
• Jul 27th 2005, 08:24 AM
notamathnerd
More Help!
Can you get a rational nonzero number with all operations? If so, do you have examples? :confused:
• Jul 27th 2005, 10:30 AM
Rebesques
?
Quote:

Can you get a rational nonzero number with all operations? If so, do you have examples?
Look man, u sound really upset -- be cool.

You can do everything you like with irrationals. They are artificially constructed, OK. They are hard to grasp, OK. But they are manageable, as much as rationals are.

Here are some facts you might like to ponder upon:

a) rational + rational = rational

b) rational + irrational = irrational

c) 1/(rational) = rational

d) 1/(irrational) = irrational

e) (rational)*(irrational) = irrational

f) If 1=2, then I am the King of France.
Because, the King and I are two, therefore we are one. :eek: