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Asked by Caleb

What is the 20th term of the sequence that begins -2,4,-8,16.....?

11 years ago

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Answered by Steve
a = -2
r = -2
so,
T20 = -2*(-2)^19
11 years ago
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What is the 20th term of the sequence that begins -2,4,-8,16.....?

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