In the expansion of (1 + ax) 1/2 the coefficient of x 2 is 2. a. Find
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In the expansion of (1 + ax)1/2 the coefficient of x2 is −2.
a. Find the possible values of a.
b. Find the corresponding coefficients of the x3 term.
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Related Book For 
Pearson Edexcel A Level Mathematics Pure Mathematics Year 2
ISBN: 9781292183404
1st Edition
Authors: Greg Attwood, Jack Barraclough, Ian Bettison, David Goldberg, Alistair Macpherson, Joe Petran
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