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1.3.1 Sequences and series

1.3.1 Sequences and series

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Question 50
a.

Let D(v)D(v)D(v) be a function representing the density of a gas relative to its volume vvv, defined by

D(v)=(2−v8)10 D(v) = \left(2 - \frac{v}{8}\right)^{10} D(v)=(2−8v​)10

Find the first 4 terms of the binomial expansion of D(v)D(v)D(v) in ascending powers of vvv, giving each coefficient as an integer.

[4]
b.

A related physical quantity Q Q\,Q is derived from the density function such that

Q=(3+2v)2D(v) Q = \left(3 + \frac{2}{v}\right)^2 D(v) Q=(3+v2​)2D(v)

Hence, find the constant term in the series expansion of QQQ.

[3]
Markscheme

1.3.1 Sequences and series Questions

  1. A Level
  2. /Maths
  3. /1.3.1 Sequences and series

99 exam-style questions on CCEA A Level Maths 1.3.1 Sequences and series. Each one has a worked solution and a mark scheme showing where the marks go.

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