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 2007-04-28 03:19:43
- Stanley_Marsh
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- Registered: 2006-12-13
- Posts: 345
invalid to 9?
Last edited by Stanley_Marsh (2007-04-28 04:31:54)
Numbers are the essence of the Universe
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#2 2007-04-28 03:26:58
- Stanley_Marsh
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- Registered: 2006-12-13
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Re: invalid to 9?
Is it because all decimal number
Numbers are the essence of the Universe
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#3 2007-04-28 04:17:40
- Identity
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- Registered: 2007-04-18
- Posts: 934
Re: invalid to 9?
Well, 0.999... = 1, so 10x - x = 9x when x = 0.999...
Also, I don't understand your original equation... everything in the brackets seems totally useless.
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#4 2007-04-28 04:30:20
- Stanley_Marsh
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Re: invalid to 9?
Last edited by Stanley_Marsh (2007-04-28 04:31:36)
Numbers are the essence of the Universe
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