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# June 2009 C4 PPQ OCR Watch

https://983c9f06eb1f75af6e83364e092b...20C4%20OCR.pdf

For part 3(i) the answer i got was 1-(2x/a) +((3x^2)/a).
Also i could do the integration in partt 6(ii)

Thanks.
2. (Original post by SamuelN98)
https://983c9f06eb1f75af6e83364e092b...20C4%20OCR.pdf

For part 3(i) the answer i got was 1-(2x/a) +((3x^2)/a).
Also i could do the differentiation in partt 6(ii)

Thanks.
3i. The first thing you should do is take 'a' out :

Can you carry on from here?
3. (Original post by notnek)
3i. The first think you should do is take 'a' out :

Can you carry on from here?
Yeah, how did you get the a^(-2)
4. (Original post by SamuelN98)
Yeah, how did you get the a^(-2)
I used

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