Posted by
**James** on
.

Prove 3+4+5+...+(n+2) = [n(n+5)]/2 for n>4

Do the first step in a proof by induction.

Sunday

March 26, 2017
Posted by
**James** on
.

Prove 3+4+5+...+(n+2) = [n(n+5)]/2 for n>4

Do the first step in a proof by induction.

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