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# Core 3 Differentiation - Help Watch

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1. Hi

I'm having trouble with both these questions (in image) - could someone provide some help please?

Thank you!

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2. Part A is a partial fractions question which doesn't require differentiation.
Factorise the denominator and then solve as a partial fraction. (Actually I think partial fractions is C4 for Edexcel...)
3. (Original post by AlexS101)
Part A is a partial fractions question which doesn't require differentiation.
Factorise the denominator and then solve as a partial fraction. (Actually I think partial fractions is C4 for Edexcel...)
Ohh no wonder! Thank you - I can still have a go at it. (It is in Core 4 but we covered it a little after our AS exams last yr)
4. For the second part sub in the answer to part a and consider what 1/(x-1) can also be written as to make the differentiation easier.
5. (Original post by Yusufff)
Ohh no wonder! Thank you - I can still have a go at it. (It is in Core 4 but we covered it a little after our AS exams last yr)
We also covered it after As exams (but in 2015) and that was why I wasn't 100% whether it was C4
6. (Original post by AlexS101)
We also covered it after As exams (but in 2015) and that was why I wasn't 100% whether it was C4
Managed to complete the Q thanks - I don't know why partial fractions is in a Core 3 exercise :/
7. (Original post by Yusufff)
Managed to complete the Q thanks - I don't know why partial fractions is in a Core 3 exercise :/
If its the same textbook as we used (and it looks like it could be... (joint textbook for C3 and C4 with a purple cover?)) its a generic textbook that has stuff for all of the exam boards and I think that partial fractions is in C3 for at least one exam board.
8. LOOOK OVER C4 PARTIAL FRACTIONS AND THEN FACTORISE AND THEN YOU GOTTA SUB VALUES OF X AND THEN SOVLE FOR THEM.(PS IM ****ED RN BUT MESSAGE ME IN THE MORING 4 INFO COS (x) ;D I can give it 2 u? eheheheheheheheheheh uni is li4e

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Updated: October 1, 2016
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