Mathematics, 13.03.2020 04:45 robert7248

Which of the following functions describes the sequence 1, 3, 7, 15, 31, 63, 127, … ?

A. f(1) = 1,f(n) = f(n − 1) + n for n > 1.
B. f(1) = 1,f(n) = 2n + 1 for n > 1.
C. f(1) = 1,f(n) = f(n − 1) + 2(n − 1) for n > 1.
D. f(1) = 1,f(n) = 2f(n − 1) + 1 for n > 1.

Answers: 2

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Which of the following functions describes the sequence 1, 3, 7, 15, 31, 63, 127, … ?

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Which of the following functions describes the sequence 1, 3, 7, 15, 31, 63, 127, … ? A. f(1) = 1,f(n) = f(n − 1) + n for n > 1. B. f(1) = 1,f(n) = 2n + 1 for n > 1. C. f(1) = 1,f(n) = f(n − 1) + 2(n − 1) for n > 1. D. f(1) = 1,f(n) = 2f(n − 1) + 1 for n > 1.

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Which of the following functions describes the sequence 1, 3, 7, 15, 31, 63, 127, … ?

A. f(1) = 1,f(n) = f(n − 1) + n for n > 1.
B. f(1) = 1,f(n) = 2n + 1 for n > 1.
C. f(1) = 1,f(n) = f(n − 1) + 2(n − 1) for n > 1.
D. f(1) = 1,f(n) = 2f(n − 1) + 1 for n > 1.