# AQA Maclaurin series

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#1
Hi,

I'm sitting for AQA FP3 in like 20 days time and I'm looking at various different exam boards to see if there are harder questions that AQA might pick up.

One of the questions want me to form a maclaurin series from f(x)= tan^-1 (1+x).
And I have no idea how to get a derivative of that in terms of x and y.

In the MS f'(x)=1/(1+(1+x)^2) but how is this possible? It's from a different examboard- do we have to know how to do this?
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3 years ago
#2
(Original post by liemluji)
One of the questions want me to form a maclaurin series from f(x)= tan^-1 (1+x).

[snip]

In the MS f'(x)=1/(1+(1+x)^2) but how is this possible? It's from a different examboard- do we have to know how to do this?
The derivative of tan^-1 (and sin^-1) are part of C3, so you are expected to know them. They are also in the AQA formula booklet. There is a lot more of this in FP2, but you aren't expected to know that for FP3.
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