I am having difficulty with the following question: ( see attachment)

I tried expanding it and i still didnt seem to quite get it.

Any help would be apriciate, thanks in advance. :)

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- Feb 27th 2011, 02:40 PMkensingtonProof by contradiction
I am having difficulty with the following question: ( see attachment)

I tried expanding it and i still didnt seem to quite get it.

Any help would be apriciate, thanks in advance. :)

- Feb 27th 2011, 02:56 PMtonio
- Feb 27th 2011, 03:23 PMPlato
If you want to do it by induction here is a trick.

$\displaystyle 3^{4(n+1)+2}+1=3^{4(n+1)+2}+3^4-3^4+1=3^4(3^{4n+2}+1)-3^4+1$ - Feb 27th 2011, 03:54 PMkensington
- Feb 27th 2011, 04:33 PMDrSteve
- Feb 28th 2011, 10:06 AMTarask
Wonder why the topic says "Proof by contradiction " ?? By induction you mean ?