## anonymous 3 years ago Just trying to memorize some formulas. Is this correct? $\sum^n_{n = 1}n^2 = \frac16n(n + 1)(2n + 1)$

1. TuringTest

yep

2. anonymous

Alright. Thanks :)

3. TuringTest

http://pirate.shu.edu/~wachsmut/ira/infinity/answers/sm_sq_cb.html it's the most annoying one of the common three to remember

4. anonymous

THose will be useful in the future. I haven't been told to memorize them yet, but I'm sure they'll come up :)

5. TuringTest

they come up in proving the power rule for integrals for one thing

6. anonymous

Oh alright. Thanks again! :)