(a)[2]
Find the constant $k$.
(b)[3]
Find the total of the first 30 terms of the progression.
Mathematics 9709 · AS & A Level · Series
Series — practice question
In an arithmetic progression, the first three terms are $k$, $6k$ and $k + 6$ in that order.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Sets up a valid equation involving only $k$, for example $2\times6k=k+k+6$.” …
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