Saturday

December 20, 2014

December 20, 2014

Posted by **Alex** on Saturday, May 11, 2013 at 8:29pm.

SHOW YOUR WORK

- TRIG -
**Reiny**, Sunday, May 12, 2013 at 12:08amexactly what don't you understand about this question

a = 2

d = 2

n = 100

Sum(100) = ....

just use your formula

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