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Find the sum to infinity of the progression.
Mathematics 9709 · AS & A Level · Series
Series — practice question
The first three terms of a geometric progression are $2p + 6$, $-2p$ and $p + 2$, in that order, where $p$ is positive.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Uses the relationship $(-2p)^2=(2p+6)(p+2)$, or an equivalent form” …
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