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Forum: Homework Help 2005-10-10, 22:33
Replies: 3
Views: 1,004
Posted By DSC
Help!

let G be a group of order p^n where p is prime, prove the center of G can't have order p^(n-1)

thanks alot!
Forum: Miscellaneous Math 2005-09-18, 09:12
Replies: 2
Views: 761
Posted By DSC
abstract algebra

please help me with this horrible problem anyone, thanks!

Determine the subgroup lattice for Zp^n, where p is prime and n is some positive integer.
Forum: Miscellaneous Math 2005-09-11, 00:56
Replies: 2
Views: 955
Posted By DSC
math help pls!

anyone please help me out with this terrible problem, thanks!

Give an example of a group with 105 elements. Give two example of groups with 44 elements.
Forum: Miscellaneous Math 2005-09-05, 03:06
Replies: 0
Views: 638
Posted By DSC
abstract algebra need help!

1) With pictures and words, describe each symmetry in D3 (the set of symmetries of an equilateral triangel)



Please help me out with this, thanks alot
Forum: Homework Help 2005-08-30, 02:40
Replies: 13
Views: 2,024
Posted By DSC
I don’t understand why I look into a mirror, and...

I don’t understand why I look into a mirror, and then a dimple in the right side of my face turns to opposite side. Could you explain why it is? :banana:
Forum: Homework Help 2005-08-22, 02:24
Replies: 13
Views: 2,024
Posted By DSC
thanks alotz.....but jinydu, would you tell me...

thanks alotz.....but jinydu, would you tell me how did you get 3/4 * (1 - 3^n + 2*3^n)......i've been trying to figure it out, but i couldn't find the answer anywayz :(
Forum: Homework Help 2005-08-21, 05:22
Replies: 13
Views: 2,024
Posted By DSC
help with math

I have this problem but can't solve it! Can some one help??

Derive this expression interm of n

"Summation (i*3^i); this summation is from i =1 to n "

my prof. give a hint that multiply out...
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