Recent content by Damo

Thank you guys for your responses. I think I have it now and will now work on how to communicate it to my students. We are doing a brief intro to mathematical induction in class on Thursday and I was feeling underprepared! Thanks for your help!

I understand the Left hand side of this equation but where/why is the right hand side $$80\cdot3^{4n}$$?

As a student, proofs always troubled me, now as a teacher they are still causing me grief. How would you do this one? Prove 34n - 1 is divisible by 80. I understand the process, setting the base and writing as n=k, then n=k+1 etc. But this has stumped me.