plz help me with this

prove by mathematical induction

P(n):1+3+6+...........n(n+1)(n+2)/2=n(n+1)(n+2)/6

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- June 19th 2008, 01:19 AMchhatrashalprove by induction
plz help me with this

prove by mathematical induction

P(n):1+3+6+...........n(n+1)(n+2)/2=n(n+1)(n+2)/6 - June 19th 2008, 03:17 AMtopsquark
- June 19th 2008, 04:55 AMKrizalid
But that should be :)

- June 19th 2008, 08:09 AMSoroban
Hello, chhatrashal!

Yes, there is a typo . . .

Quote:

Prove by mathematical induction:

. .

Verify . . . True.

Assume

Add to both sides;

. .

The right side is: .

. .

We have established . . . The inductive proof is complete.