When (1 + ax) 3 , where a is a positive constant, is expanded the coefficients of
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When (1 + ax)−3, where a is a positive constant, is expanded the coefficients of x and x2 are equal.
a. Find the value of a.
b. When a has this value, obtain the first 5 terms in the expansion.
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a To find the value of a we expand 1 ax3 using the binomial ...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
Question Posted:
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