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

a i Using the binomial expansion formula we have 1 2x5 1 52x 102x2 ...

a. Find the first three terms, in ascending powers of x, in the expansion of: i. (1

Question:

a. Find the first three terms, in ascending powers of x, in the expansion of:

i. (1 + 2x)⁵

ii. (3 − x)⁵

b. Find the coefficient of x² in the expansion of [(1+ 2x)(3 − x)]⁵.

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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 10, 2023 06:35 AM

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a. Find the first three terms, in ascending powers of x, in the expansion of: i. (1

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a i Using the binomial expansion formula we have 1 2x5 1 52x 102x2 ...View the full answer

Cambridge International AS And A Level Mathematics Pure Mathematics 1 Coursebook

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