(a)[3]
Determine the term that is independent of $x$ in $(3x + \frac{2}{x^2})^6$.
(b)[3]
Determine the term that is independent of $x$ in $(3x + \frac{2}{x^2})^6(1 - x^3)$.
Mathematics 9709 · AS & A Level · Series
Series — practice question
For each expansion, determine the term that does not involve $x$.
Worked solution & mark scheme
This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The correct binomial coefficient term is $\binom{6}{2}(3x)^{4}\left(\frac{2}{x^{2}}\right)^{2}$” …
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