a. Expand (2 x) 1 and (1 + 3x) 2 giving the first 3 terms in
Question:
a. Expand (2 − x)−1 and (1 + 3x)−2 giving the first 3 terms in each expansion.
b. Use your answers to part a to find the first 3 terms in the expansion of (2 − x)−1(1 + 3x)−2, stating the range of values of x for which this expansion is valid.
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a To expand 2 x1 and 1 3x2 we can use the formula for the binomi...View the full answer
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Related Book For 
Cambridge International AS & A Level Mathematics Pure Mathematics 2 & 3 Coursebook
ISBN: 9781108407199
1st Edition
Authors: Sue Pemberton, Julianne Hughes, Julian Gilbey
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