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Expand $(1 + 3x)^{-\frac{1}{3}}$ in ascending powers of $x$ up to and including the $x^3$ term, with the coefficients simplified.
Mathematics 9709 · AS & A Level · Algebra
Algebra — practice question
Worked solution & mark scheme
This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: “State a correct unsimplified expression for the term in $x$, $x^2$ or $x^3$” …
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