In this question, part (a) tests us on basic concepts of Maclaurin’s Series Expansion by making use of the formula in the MF15/26. Part (b) is the interesting one which require us to make some observations and manipulations so that you can answer the question using answers from earlier part. Many students would struggle to answer part (b) as they do not see the links. I hope I have presented the solutions clearly for your understanding.
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