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We did more Sequences & Series Grade-A questions, covering AP GP questions and also cleared Series Expansions, involving Maclaurin Series and Small Angles Approximations. For AP GP, modelling accurately is key! As always, the contexts can be misleading, but once your information is clearly tabled (note if we need the beginning or end value), the numbers should paint a clear picture. Series expansion involved a good bit of tedium, so reserve some energy for such questions! While setters will again include very interesting contexts (hyperbolic functions?!), we will again focus specifically on the math, which will definitely be something we know.Buy Now !