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\[\sum_{k=1}^{5} k^3\]

i think its just the square of k^1

\[\sum k=\frac{n(n+1)}{2}\]
\[\sum k^3=\left(\frac{n(n+1)}{2}\right)^2\]
rings a bell to me

It's always a good idea to list out the elements of series this small:\[1^3+2^3+3^3+4^3+5^3.\]

Just to get a feel for it, you feel me!? ^^

Yeah, thanks. So would it be 1, 8, 27, 64, 125?

Don't forget that it's a summation! :P

What do you mean?

you have to add them...

euler plagarized the chinese :P

^^ lol, how do you know ? :P

past life regression :)

if we take the derivative of this life ....

You were there when Euler did it? ... omG! :D

yep, just call me JC Superstar yay!!

lol :D

ADD them up!
that is what summation means

I said it above but nobody cared...

\[1^3+2^3+3^3+4^3+5^3=?\]