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Eyad
Group Title
~I Need Someone Who Understand Permutations And Combinations *Very well* ..~
 one year ago
 one year ago
Eyad Group Title
~I Need Someone Who Understand Permutations And Combinations *Very well* ..~
 one year ago
 one year ago

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CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
For what? I don't know if I qualify as *very well* but I know how they work. You got something really complicated?
 one year ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
@CliffSedge :They are not very Complicated but i want someone to help me through some questions ....
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
I'll at least take a look at one. I need to go in few minutes, though, but hopefully I can at least point you in the right direction.
 one year ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
hmmm. As a start : IF : \[\Large C^{n}_{8} \times C^{n}_{6} \ge C^{n}_{7} \times C^{n}_{5}\] Prove That : \[\Large n \ge13\] _
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Ok, so you know the combinations formula? \[nCk=\frac{n!}{k!(nk)!}\]
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Ok, and as a start, n≥k so it has to be at least 8, just given the values of k.
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
It might also help to look at a simpler case using slightly smaller numbers to see how the factorials simplify. e.g. Show that 6C5 X 6C3 ≥ 6C4 X 6C2. That may give you some further insight.
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Sorry, should have said "e.g. Show if ... ≥ ..." Because it might not.
 one year ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
To be honest thats not giving me at least a small hint .. I was looking for a short way to end this question .. Anyway Ty for your help :)
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
If you play around with it a little bit, you'll see that the difference between n and k is important for the ultimate size of nCk  maybe also think of Pascal's Triangle . . .
 one year ago

CliffSedge Group TitleBest ResponseYou've already chosen the best response.1
Yeah, sorry, I'm feeling rushed, 'cause I need to go take care of some other matters, so the shortcut isn't coming to me at the moment. Good luck!
 one year ago

Eyad Group TitleBest ResponseYou've already chosen the best response.0
nvm ,i will find a way for it :) Ty again :)
 one year ago
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