BankOfPigs
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#1
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Hello

In my C4 papers (I do OCR) questions are along the lines of


Expand (2+x)^−2 in ascending powers of x up to and including the term in x^3


I was wondering if I could use a maclaurin series as opposed to the standard binomial series. It's mostly because I find it tedious to 'standardize' into a form of 1+ax. I'd much rather just differentiate a few times and I also just don't like copying out of the formula book. I also find it good for checking.

Would I lose marks for expansion with Maclaurin as opposed to binomial?

Thanks
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brianeverit
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(Original post by BankOfPigs)
Hello

In my C4 papers (I do OCR) questions are along the lines of


Expand (2+x)^−2 in ascending powers of x up to and including the term in x^3


I was wondering if I could use a maclaurin series as opposed to the standard binomial series. It's mostly because I find it tedious to 'standardize' into a form of 1+ax. I'd much rather just differentiate a few times and I also just don't like copying out of the formula book. I also find it good for checking.

Would I lose marks for expansion with Maclaurin as opposed to binomial?

Thanks
Not unless you were instructed to use a binomial expansion.
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user2020user
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(Original post by BankOfPigs)
...
'Standardising' it to the required form is so crap. Maclaurin all the way!
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BankOfPigs
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(Original post by brianeverit)
Not unless you were instructed to use a binomial expansion.


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Would I have to say I was using maclaurin?
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Mike_123
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(Original post by BankOfPigs)
Hello

In my C4 papers (I do OCR) questions are along the lines of


Expand (2+x)^−2 in ascending powers of x up to and including the term in x^3


I was wondering if I could use a maclaurin series as opposed to the standard binomial series. It's mostly because I find it tedious to 'standardize' into a form of 1+ax. I'd much rather just differentiate a few times and I also just don't like copying out of the formula book. I also find it good for checking.

Would I lose marks for expansion with Maclaurin as opposed to binomial?

Thanks
Use it only as a check. It doesn't event take that long, not worth the risk.
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brianeverit
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(Original post by BankOfPigs)
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Would I have to say I was using maclaurin?
It would certainly be advisable
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