Q.Prove by induction that...

Please see attachment.

The end result should be divisible by 6, but it hasn't worked out that way for me. Can someone help me spot where I've gone wrong? Thanks.

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- September 20th 2011, 11:50 AMGrigOrig99Proof by Induction - Divisibility Proofs
**Q.**Prove by induction that...

Please see attachment.

The end result should be divisible by 6, but it hasn't worked out that way for me. Can someone help me spot where I've gone wrong? Thanks. - September 20th 2011, 12:30 PMebainesRe: Proof by Induction - Divisibility Proofs
Your error is in saying that That's incorrect. Try this:

Note that is divisible by 6. So if is divisible by 6, then then so is - September 20th 2011, 01:38 PMGrigOrig99Re: Proof by Induction - Divisibility Proofs
Thanks, I really appreciate it.

- September 20th 2011, 04:29 PMSorobanRe: Proof by Induction - Divisibility Proofs
Hello, GrigOrig99!

Quote:

I prefer to do it like this . . .

Verify

Assume

Add to both sides:

- - . .

. .

- - - .

. . . . . . . . . . .

. . . . . . . . . . .

. . . . . . . . . . .

And we have proved