Mathematics 9709 · AS & A Level · Algebra

Algebra — practice question

(main)[3]

If $\sqrt[3]{(1 + 9x)} \approx 1 + 3x + ax^2 + bx^3$ for small values of $x$, determine the values of the coefficients $a$ and $b$.

Worked solution & mark scheme

This 3-mark question has a full step-by-step worked solution and mark scheme. One marking point: State the correct unsimplified $x^2$ term or $x^3$ term

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