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
Hello, chhatrashal!
Yes, there is a typo . . .
This is the sum of triangular numbers . . . and it's true.Prove by mathematical induction:
. .
Verify . . . True.
Assume
Add to both sides;
. .
The right side is: .
. .
We have established . . . The inductive proof is complete.