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13 November, 14:28

A sequence is defined recursively by the formula f (n + 1) = - 2f (n). The first term of the sequence is - 1.5. What is the next term in the sequence?

A.-3.5

B.-3

C. 0.5

D. 3

+5
Answers (1)
  1. 13 November, 14:50
    0
    We have f (1) = - 1.5;

    f (2) = - 2f (1), because we put n=1 in formula f (n+1) = - 2f (n);
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