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I'll write S instead of { a _ n : n in J }. If x is an accumulation point of a set...it is in S, it is of the form a _ n _k, and since it is in B_ε(x) it ...

1 Answers · Science & Mathematics · 28/01/2011

Well in this case the formula would be (

**n**C**n**-**j**)***a**^(**n**-**j**)*(x^2)^**j**x^8 = (x^2)^4 so**j**= 4**n**= 7**n**-**j**= 3**a**= 3 So...2 Answers · Science & Mathematics · 26/07/2009

Your "(

**n**over**J**)" can be written as "**n**C**J**" (standing for...1 Answers · Science & Mathematics · 22/07/2009

...gcd(

**a**,**n**) = 1. Assume by contradiction that gcd(**a**^**j**,**n**) = d > 1. Then, d |**a**^**j**and d |**n**. By... than one. Thus, the assume that gcd(**a**^**j**,**n**) > 1 is false. Therefore, gcd(**a**^**j**,**n**...2 Answers · Science & Mathematics · 31/10/2011

k + (k+1) + (k+2) + ... +

**n**??? the answer is (**n**-k+1) k + (1 + ... + (**n**-k)) = nk - k^2 + k + ((**n**-k) (**n**-k+1)) / 2 = nk - k^2 + k +**n**^2/2 - nk + k^2/2 +**n**/2 - k/2 = (**n**^2 +**n**- k^2 + k) / 21 Answers · Science & Mathematics · 07/01/2010

... left-hand side of the identity can be written (*) ∑ ∑{0 ≤ i ≤ n , 0 ≤ j ≤ n } a _ij b_ij, where b_ij = 1 if (i, j ) is in X and b_ij = 0 otherwise...

1 Answers · Science & Mathematics · 20/05/2014

...

**J**(NCJ), or in other words, in how many ways can we choose**J**tags from**a**group of**N**. The equation for the combination function is: NCJ =**N**!/[(**J**...1 Answers · Science & Mathematics · 14/02/2008

Let M =

**J**_f(**a**) and**N**=**J**_{f^{-1}}(f(**a**)). Note that M and**N**...we learn that NM =**J**_{f^{-1}}(f(**a**))**J**_f(**a**) =**J**_{f^{-1} o f} (**a**) But...2 Answers · Science & Mathematics · 20/03/2012

x's=[-1-

**j**+&-(1+**j**^2+2j-2)^1/2]=-1-**j**+&-(2j-2)^1/2 God bless you.1 Answers · Science & Mathematics · 18/12/2012

Hi, 1. ad=f;

**a**.f --- =**a**<==ANSWER d 2.**n**+3=q;**n n**= q - 3 <==ANSWER 3. 2(**j**+k)=m;k 2j + 2k = m 2k = m - 2j m - 2j --------- = k <==ANSWER...6 Answers · Science & Mathematics · 06/10/2008

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