- #1

supasupa

- 24

- 0

I need some help with this problem as I dont know which direction to go with it.

Prove by mathematical induction that (13^n)-(6^n) is divisible by 7.

The Base Step is obviously ok....

Then assume (13^K)-(6^K) is true

Then have to prove (13^(k+1))-(6^(k+1)) is true...... how do i do this

thank heaps....