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...any duplicate numbers in Step 2. That will be: n((T ∩

**K**) ∪**C**) I think this is what you asked for. forming.1 Answers · Science & Mathematics · 21/02/2017

i)

**c**_**k**(A+B) =**c**_**k**(A)+**c**_**k**(B), because every element of A... the addition of the**k**-th columns of A and B. ii)**c**_**k**(λA) = λ**c**_**k**(A), because (λA)_ij = λ A_ij, and therefore...1 Answers · Science & Mathematics · 16/03/2013

**k**= (n+1)_**C**_2 = (n+1)(n)/2 1/**k**= 2/((n+1)(n)) = 2(1/((n+1)(n))) ... (expanding the...n+1)/((n+1)(n))-(n)/((n+1)(n)) = 2(1/n - 1/(n+1)) So... Σ1/**k**= Σ 2(1/n - 1/(n+1)) = 2 Σ (1/n - 1/(n+1)) Because...5 Answers · Science & Mathematics · 18/12/2008

square root of 481? or square root of 97? Either one works.

5 Answers · Science & Mathematics · 14/04/2008

ax^2 + bx +

**c**= 0 the discriminant is b^2 - 4ac a =**k**+ 2 b = -**k****c**= -2 (-**k**)^2 - 4(**k**+ 2) * -2 >= 0**k**^2 + 8k + 16 >= 0 (**k**+ 4)^2 >= 0**k**+ 4 >=0**k**>= -4 for real roots2 Answers · Science & Mathematics · 28/09/2014

**K**-**C**-**C**the signs of -(+4), and we have: -3 + (-4) = -7 I hope this helps!2 Answers · Science & Mathematics · 09/04/2011

... remaining constants are then added to get

**k**(in this case -9 + 8 = -1).1 Answers · Science & Mathematics · 28/11/2009

...

**k**For no zeros, b^2 < 4ac where b = -4, a =**k**and**c**=**k**So (-4)^2 < 4 x**k**x**k**16 < 4k^2 4...3 Answers · Science & Mathematics · 23/01/2012

... A X

**K**Z**K**N J J**K****C**E X Q I Z V If you don t know the...1 Answers · Science & Mathematics · 01/02/2016

(a + b)^n = ∑[

**k**=0,n]**C**(n,**k**) a^(n-**k**)b^**k**so the coefficient of the a^20b^7 for (a − b... at**C**(27,7) a^(27-7)(-b)^7 now (x+1)^11 =**C**(11,**k**) *x^(11-**k**)(1)^**k**so for that we want a**k**value of 3 => 11...2 Answers · Science & Mathematics · 03/05/2014

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