Hi,
Could someone please explain how to do this:
Show by Induction that:
n^2 - 2n + 5 > 0 for all n>=1
I have so far:
Show true for n = 1
Assume true for n = k
Show true for n = k+1 (using assumption)
So:
k^2 + 2k + 5 -2k - 1 >0
|---- >0 ---|
??
Thanks.