Given the statement 11^(n -6) is divisible by 5 for every positive integer n. What must be shown in the induction step?

Proved

Step-by-step explanation:

The given data is:

not

Required

Prove by induction that it is divisible by 5

Assume

So, we have:

where p is a positive digit

Rewrite as:

To solve further, we have to prove that is true for

So, we have:

Add 0

Replace 0 with

Factorize

Substitute

Factorize

Factorize

The 5 outside the bracket implies that it is divisible by 5

(a) the volume of the cone is 20/3 in3

hence, option a is correct.