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1 Unit 1: Pure Mathematics A

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Question 134
a.

Find the first four terms, in ascending powers of xxx, in the expansion of (1−2x)8(1-2x)^8(1−2x)8.

[4]
b.

The coefficient of x3 x^3\,x3 in the expansion of (1−2x)8(1+kx)(1-2x)^8(1+kx)(1−2x)8(1+kx) is zero. Determine the value of kkk.

[3]
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1 Unit 1: Pure Mathematics A Questions

  1. A Level
  2. /Maths
  3. /1 Unit 1: Pure Mathematics A

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