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1. ### are there any easy ways for this question?!!(probability)

No other way , I think . There&#39; s another way of interpreting it, but it gives the...quot;[ 38! / (39-r)! ] x (52-r)!&quot;, r from 1 to 39 Therefore, probability 　= { sum of &...

分類：科學及數學 > 數學 2007年02月04日

2. ### Proof( s ) of the formula for finding the volume of a pyramid

...you need, in particular Proposition 5 is probably the most important one to look for. For arbitrary shaped pyramid, think of they are composed to many small triangular based one :).

分類：科學及數學 > 數學 2007年04月30日

3. ### Applied Maths. (ask a question or 50% to unfortunate end.??)

...rdquo;What is the other one s answer if I choose a door to where I want to go?” The action should be: Refer to the...

分類：科學及數學 > 數學 2008年10月20日

4. ### HKAL differentiation

...2010-03-27 01:01:44 補充： 厲害...不過我冇讀app...唔係好諗到會用taylor' s series~

分類：科學及數學 > 數學 2010年03月26日

5. ### 數學-抽波概率

...amp;quot; So let&#39; s me explain... Now there are n balls, number of ways to divide them into two equal group is nC(n/2) [choosing n/2 balls out of n...

分類：科學及數學 > 數學 2007年12月04日

6. ### S1-S2 MATH

... by 10% and then decreased by 10%,the value of x is unchanged. His calculation: x(1+10%-10%)=x Point out the mistake in Peter' s calculation. Answer : It should be x(1+10%)(1...

分類：科學及數學 > 數學 2010年09月04日

7. ### 數統科，請打救我

...cut&#39; method for this one . First let&#39; s consider a question: which of the following have higher chance to speak first ? A or C? Since THERE IS...

分類：科學及數學 > 數學 2007年09月22日

8. ### Multivaribles Problem

...000,000 和 Discrete data 全無關係 (Outcome of rolling dice is discrete data.) 是否想表達...50 補充： ∑X/N是有點intuitive,but just want to make my point simple... = ∑[i = 1 to m, j = 1 to n...

分類：科學及數學 > 數學 2009年12月04日

9. ### S4_Mock02_E

... read: 圖片參考：https:// s .yimg.com/rk/HA00430218/o/1286536996.png... 1, yes you can do it your way . For Question 2, I think you must use a calculator even you use Heron...

分類：科學及數學 > 數學 2014年12月29日

10. ### proof-sphere in a cylinder(3D)

...circular cross section of the hemisphere changes and the way the cross section of the cone changes match up. Conclusion...feature of this approach is that it DOES lead to a general method which WILL be used ...

分類：科學及數學 > 數學 2007年09月08日

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