Mathematics 9709/13 — October/November 2011

Cambridge AS Level · Pure Mathematics 1 · worked solutions for every part, with the mark scheme

questions

marks

105

minutes

Topics Quadratics · Coordinate Geometry · Series · Trigonometry · Integration · Circular Measure · +2 more

Q13MSeriesFree sample

The coefficient of $x^2$ in the expansion of $(k + \frac{1}{3}x)^5$ is 30. Find the value of the constant $k$ .

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