Question

find the sum:
\[\sum_{n=51}^{100}7n\]

Answer 1

how would i solve this?

Answer 2

7n = 100 http://mathway.com/answer.aspx?p=ccal?p=SMB23SMB08nSMB01100,100,7nSMB09?p=1704?p=?p=?p=?p=?p=0?p=?p=0?p=?p=?p=EvaluateSMB15theSMB15Series

Answer 3

Not an infinite series.

Answer 4

but what if n=51

Answer 5

Sorry messed up it is 26425.

Answer 6

Yep, 7 * 3775 = 26425.

Answer 7

how did you get that?????