a Find the first three terms in the expansion of (3 2x) 7 , in ascending powers of x b Find the coefficient of x 2 in the expansion of (1 5x)(3 2x) 7 ...

a Using the binomial theorem expand 3 2x7 as 3 2x7 C70 37 2x0 C71 3 ...

a. Find the first three terms in the expansion of (3 2x) 7 , in ascending

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a. Find the first three terms in the expansion of (3 − 2x)⁷, in ascending powers of x.
b. Find the coefficient of x² in the expansion of (1 + 5x)(3 − 2x)⁷.

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

ISBN: 9781108407144

1st Edition

Authors: Sue Pemberton, Julian Gilbey

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Question Posted: Mar 11, 2023 06:15 AM

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a. Find the first three terms in the expansion of (3 2x) 7 , in ascending

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Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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