Can someone proofread my work. I have seen the answer to my question online and it differs by a negative sign. Just wondering If I was on the right track

Question

swissgirl · Answer

attachment

anonymous · Answer

Hello there! I am reviewing your question. :)

swissgirl · Answer

Thanks. I skipped alot of steps but you should be able to follow what I did

anonymous · Answer

Yeah,  I can. Those steps weren't completely necessary anyway. :) You have lovely handwriting by the way!

swissgirl · Answer

Thanks

anonymous · Answer

Your computation is correct. Good work! :)

swissgirl · Answer

The answer I have seen is $ C_{k+2}=\large \frac{k-2}{k+2}C_{k+1} - \frac{C_k}{k+2}$

anonymous · Answer

hmm.... I feel this is a computational error. But let me see... @ParthKohli ?

parthkohli · Answer

So I'm gonna teach Swissgirl now? Impossible :L

swissgirl · Answer

yaaaaaaaaaaaa can you review my work?

parthkohli · Answer

Nope.

swissgirl · Answer

ahaaaaaaaaaaaa

parthkohli · Answer

I can't, because I can't

swissgirl · Answer

@Zarkon Can you please check my work?

swissgirl · Answer

@amistre64 Can you please check my work?

phi · Answer

It looks ok to me.

if your answer does not match the book's then there is probably a typo lurking somewheres...

swissgirl · Answer

Ya it looks ok to me too. I think I will just stick to my answer. Thanks sooooooo much :)