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1.7.5 Geometric sequences and series (A-level only)

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Question 4

The third term of a geometric series is 18 and the sixth term of the series is 486.

a.

Find the common ratio.

[2]
b.

Find the first term of the series.

[2]
c.

Find the sum of the first 10 terms, giving your answer to the nearest whole number.

[2]

1.7.5 Geometric sequences and series (A-level only) Questions

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  3. /1.7.5 Geometric sequences and series (A-level only)