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Unformatted text preview: index of summation . 1 Rules of the summation • ∑ n k =1 ca k = c ∑ n k =1 a k • ∑ n k =1 c = c ∑ n k =1 1 = cn • ∑ n k =1 ( a k ± b k ) = ∑ n k =1 a k ± ∑ n k =1 b k • ∑ n k =1 a k = ∑ m k =1 a k + ∑ n k = m +1 a k where 1 < m < n . Important Sums • ∑ n k =1 k = n ( n +1) 2 • ∑ n k =1 k 2 = n ( n +1)(2 n +1) 6 • ∑ n k =1 k 3 = ( n ( n +1) 2 ) 2 Example 4 : Example 5 : 2...
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This note was uploaded on 05/23/2011 for the course MAC 1147 taught by Professor Nuegyen during the Spring '11 term at FSU.
 Spring '11
 Nuegyen

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