(Choose
1 answer)
In the strong induction proof of the following problem
Problem: Prove that P(n) = "for all n\ge24 we have n=5a+7b with a, b non-negative integers" is true in order to prove P(k+1) is true, we should
A. use P(k-4)="k-4=5x+7y,(x,y are in N)" is true and k+1=k-4+5.
B. use *P(k-2)=^{\prime\prime}k-2=5x+7y,,,, x, y are in N)" is true and k +1=k-2+3
C. use P(k-1)="k-1=5x+7y,(x,y are in N)" is true and +1=k-1+2
D. use P(k-3)=^{4}k-3=5x+7y (x, y are in N)" is true and k+1=k-3+4
14
