How do I evaluate the sum of the sigma notation?

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How do I evaluate the sum of the sigma notation?

( 7Σk=1 of k)^2 - Σ of (k^3/4) ?

2007-11-08 08:18:48 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

2 answers

assuming you mean:
7
Σ k
k=1
= 1 + 2 + ... + 7 = 28

2007-11-12 07:03:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋

You need to write it more correctly, which is hard to do online.

Just express it in words if you need help here. (The sum as k goes from ... to ... of ...)

2007-11-08 14:44:41 · answer #2 · answered by Curt Monash 7 · 0⤊ 0⤋