a) Write down the expansion of (1 x) 5 b) By letting x y y, find the coefficient of y 8 in the expansion of (1 y y) 5 ...

ANSWER a The expansion of 1 x5 can be found by using the binomial theorem 1 ...

a) Write down the expansion of (1 + x) 5 . b) By letting x = y

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a) Write down the expansion of (1 + x)⁵.

b) By letting x = y + y², find the coefficient of y⁸ in the expansion of (1 + y + y²)⁵.

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Complete Pure Mathematics 1 For Cambridge International AS & A Level

ISBN: 9780198427438

2nd Edition

Authors: Jean Linsky, Brian Western, James Nicholson

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Question Posted: Apr 13, 2023 10:58 AM

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a) Write down the expansion of (1 + x) 5 . b) By letting x = y

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ANSWER a The expansion of 1 x5 can be found by using the binomial theorem 1 ...View the full answer

Complete Pure Mathematics 1 For Cambridge International AS & A Level

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