Mathematics 9709/12 — October/November 2019

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

questions

marks

105

minutes

Topics Coordinate Geometry · Series · Integration · Quadratics · Differentiation · Trigonometry · +2 more

Q14MSeriesFree sample

The coefficient of $x^2$ in the expansion of $(4 + ax)\left(1 + \frac{x}{2}\right)^6$ is 3. Find the value of the constant $a$ .

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