Need detailed instruction on how to work
Use mathematical induction to prove that : 1*2+2*3+3*4+....+n(n+1)(n+2)/3 for
all n >_1
and (2) Find d=gcd (721 , 448), find integers s and t with d=721s + 448t, and put the
fraction 448/721 in lowest terms.
This is an induction proof regarding sum of series and greatest common denominator.