Question
Asked Dec 2, 2019
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Can i get help step by step with this problem?

1
Evaluate the sum.
7
Σ (1+2)
n 1
7
Σ (1+2 )-
(Type an integer or a simplified fraction.)
n 1
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1 Evaluate the sum. 7 Σ (1+2) n 1 7 Σ (1+2 )- (Type an integer or a simplified fraction.) n 1

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Expert Answer

Step 1

The given su...

Συ-r)
Write the above sum without sigma notation as follows.
7
7
7
Συ-r)-ΣΣ'
ΕΣ4+η-Σα, + Σ)]
7(7+1(2.7+1)
п(n+1)(2n+1)
= 1-7
Xa=a-nandk
6
6
k-1
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Συ-r) Write the above sum without sigma notation as follows. 7 7 7 Συ-r)-ΣΣ' ΕΣ4+η-Σα, + Σ)] 7(7+1(2.7+1) п(n+1)(2n+1) = 1-7 Xa=a-nandk 6 6 k-1

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