Math Is Fun Forum
Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ π -¹ ² ³ °
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#1 2007-12-31 21:52:10
- tony123
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- Registered: 2007-08-03
- Posts: 229
Solve the equation
Solve the equation
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#2 2008-01-01 00:07:05
- Jai Ganesh
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- Registered: 2005-06-28
- Posts: 46,177
Re: Solve the equation
x=1, by intuition!!!
It appears to me that if one wants to make progress in mathematics, one should study the masters and not the pupils. - Niels Henrik Abel.
Nothing is better than reading and gaining more and more knowledge - Stephen William Hawking.
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#3 2008-01-01 05:54:48
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: Solve the equation
What about
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#4 2008-01-08 23:36:23
- lester_day
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- Registered: 2007-11-19
- Posts: 4
Re: Solve the equation
Nice one JaneFairfax.
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#5 2008-01-08 23:52:17
- JaneFairfax
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- Registered: 2007-02-23
- Posts: 6,868
Re: Solve the equation
It should be obvious that the way to tackle these questions is to spot all the obvious solutions and then show that these are the only real solutions (I presume Tony only wants real solutions). 
This is what the curves
and look like together (they former only exists in the range −15 ≤ x ≤ 2):http://www.mathsisfun.com/graph/functio … x=6.566125
Last edited by JaneFairfax (2008-01-08 23:54:13)
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