Discussion about math, puzzles, games and fun. Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °
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Topic review (newest first)
- MathsIsFun
- 2005-10-07 08:00:07
A baby taught us, see Multiplying Negatives
- ramzi
- 2005-10-07 02:32:27
Clever maths people, how do you deduce (-1) x (-1)= 1
- mathsyperson
- 2005-09-29 00:48:16
√43 - √23 √43 - √23 43 - 2√(43x23) + 23 66 - 2√989
------------- x ------------ = ------------------------ = -------------
√43 + √23 √43 - √23 43 - 23 20
The math tag looks rather complex.
- tilly
- 2005-09-18 20:44:37
cheers
- MathsIsFun
- 2005-09-18 18:02:26
√ 2
------
3√ 3
- tilly
- 2005-09-18 17:22:52
yes, please help
- MathsIsFun
- 2005-09-17 23:01:07
As in getting rid of radicals in the denominator?
- tilly
- 2005-09-17 21:42:17
hey, i was wondering if you could show me how to rationalise the denomiators on a couple of these, in easy steps.
1
----
√ 2
√ 2
------
3√ 3
√ 43 - √ 23
-------------
√ 43 + √ 23