(i)[4]
Determine the values of $x$ and $y$.
(ii)[3]
Determine the fourth term of each progression.
Mathematics 9709 · AS & A Level · Series
Series — practice question
In an arithmetic progression, the first three terms are $4$, $x$ and $y$ respectively. In a geometric progression, the first three terms are $x$, $y$ and $18$ respectively. You are told that both $x$ and $y$ are positive.