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 2009-03-18 12:39:23
- tony123
- Member
- Registered: 2007-08-03
- Posts: 229
Find
Find
if
.Last edited by tony123 (2009-03-18 12:39:51)
Offline
#2 2009-03-19 05:54:40
- Kurre
- Member
- Registered: 2006-07-18
- Posts: 280
Re: Find
(1) (2)
multiplying the two equations yields:
(3)
adding these two equations and using (3) yields:
but √5/2+√2 is greater than 2 which would be impossible (y <4), thus
multiplying the two equations yields:
(3)
Now expanding (1) and (2) yields:
.
adding these two equations and using (3) yields:
but √5/2+√2 is greater than 2 which would be impossible (y <4), thus
Last edited by Kurre (2009-03-19 06:02:53)
Offline
Pages: 1