SOLUTION: Find the sum in terms of n for n ∑ {{{ (3k^2-5k+7) }}} k=1 Given: n ∑= {{{ (n(n+1)(2n+1))/6 }}} k=1 n ∑= {{{ (n(n+1))/2 }}} k=1

Question 1177007: Find the sum in terms of n for
n
∑
k=1
Given:
n
∑=
k=1
n
∑=
k=1
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!

Your presentation of the problem is flawed; the information as given is nonsense.

I don't know if you posted it incorrectly, or if it was incorrect when it was given to you.

When the problem is presented correctly, the solution is simple.

---------------------------------------------------------

Here is how the problem should have been posted:

Find the sum in terms of n for

Given:

(The "k^2" was missing in your post, making the statement meaningless)

and

(likewise, the "k" was missing)

It should also be obvious that

Then...

Then simplify if required.

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