Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
You are not logged in.
- Topics: Active | Unanswered
Pages: 1
#1 2006-12-26 04:40:40
- Rose-Red
- Member
- Registered: 2006-01-05
- Posts: 19
rationals and irrationals
Could u please prove by contradiction (discrete maths) that "if n is an irrational number and m is rational then n + m is irrational".
P.S. doing my revision for exam and stuck here 
Offline
#2 2006-12-26 06:01:32
- Toast
- Real Member
- Registered: 2006-10-08
- Posts: 1,321
Re: rationals and irrationals
There was recently another thread asking the same question:
http://www.mathsisfun.com/forum/viewtopic.php?id=5448
Offline
#3 2006-12-26 06:13:55
- Rose-Red
- Member
- Registered: 2006-01-05
- Posts: 19
Re: rationals and irrationals
oh thanx, didnt realise that 
Happy Christmas Toast
Offline
Pages: 1