Multiple choices 1/50
Answer (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 in order to prove P(k+1) is true, we should
A. use P(k-4)=^{\prime\prime}k-4=5x+7y, (x, y are in N)" is true and k+1=k-4+5
B. use P(k-2)="k-2=5x+7y, (x, y are in N)" is true and k+1=k-2+3
C. use P(k-1)=^{\prime\prime}k-1=5x+7v (x, y are in N)" is true and k +1=k-1+2
D. use P(k-3)=^{\prime\prime}k-3=5x+7y. (x, y are in N)" is true and k+1=k-3+4
Next
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48 49 50
