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October 22, 2016
Posted by **James** on Monday, June 21, 2010 at 10:53pm.

Do the first step in a proof by induction.

- pre-calculus -
**Reiny**, Monday, June 21, 2010 at 11:16pmYou must have a typo

in 3+4+5+ ... + (n+2)

the general term does not match your first three numbers - pre-calculus -
**James**, Tuesday, June 22, 2010 at 9:03pmI'm not sure. It was on my math test. I typed it out exactly like it said on the test.