Mathematics 9709 · AS & A Level · Series

Series — practice question

The initial term in a geometric progression is 12, and the next term is $-6$.

(i)[3]

Determine the tenth term of the progression.

(ii)[2]

Determine the sum to infinity.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Try to obtain $r$ from $ar$.” …