Official papers

Official 2018 Paper 1 · Q8

Paper 1Sequences & series

The sum to infinity of a geometric progression is 6.

The sum to infinity of the squares of each term in the progression is 12.

Find the sum to infinity of the cubes of each term in the progression.

A88
B1818
C2424
D2167\frac{216}7
E7272
F216216

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