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Determine the total of the first $50$ terms of the progression.
Mathematics 9709 · AS & A Level · Series
Series — practice question
The first three terms in an arithmetic progression are $a$, $2a$ and $a^2$, with $a$ being a positive constant.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “An appropriate algebraic equation, for example $2a-a=a^2-2a$” …
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