Question

Prove that (n + 1)! (n + 3) = (n + 1)! + (n + 2)!.​

Answer 1

Answer:

(n + 1)! (n + 3) = (n + 1)! + (n + 2)!.

Answer 2

Answer:

This question already has answers here: Proving 13+23+⋯+n3=(n(n+1)2)2 using induction (16 answers) Closed 6 years ago. This is what I've been ...

Top answer · 8 votes

HINT: You want that last expression to turn out to be (1+2+…+k+(k+1))2, so you want (k+1)3 ... More