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Lesson 2 – Geometric Sequences, Series and Applications — Lesson quiz

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1.
The 7th term of the geometric sequence (2, 6, 18, ...) is:
729
162
486
1458
2.
If (x - 1, x + 2, 3x) form a geometric sequence, the positive value of x is:
4
2
6
3
3.
The sum to infinity of the geometric series 16 + 8 + 4 + 2 + ... equals:
64
24
30
32
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