Re: is this enough prove?

Hello, Petrus!

It's hard to follow what you're doing.

. . I hope you don't present it like that . . .

And I don't like that power.

Are you trying an Inductive Proof?

Verify . . . True!

Assume

That is: .

Add to both sides:

. .

. .

. .

. . . . .

. . . . .

We have proved

The inductive proof is complete.

Re: is this enough prove?

Hello!

That way u solved it is not how i would do but i got 2 question

1. The way i solved it would i get wrong on a test and i did solve it like that

2. I dont get it what happend with ^(n+1)?? On that i did 5^1-1 =4 do i mean that n=0?

Re: is this enough prove?

@Petrus, your proof seems correct. However you know that so therefore

(this is a more direct method).

Re: is this enough prove?

Ohh never thought about it... Stupid of me sorry