Question

Identify the recursive formula for the following sequence:

1/2, 1 1/2, 3 1/2, 7 1/2...

Answer 1

C on edge my loves

Explanation:

Answer 2

C

Explanation:

The problem is where does n start?

a1 = 1/2

a2 = 2*(a1) + 1/2

a2 = 2*(1/2) + 1/2

a2 = 1 + 1/2

a2 = 1 1/2

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a3 = 2*a2 + 1/2

a3 = 2*(1 1/2) + 1/2

a3 = 3 + 1/2

a3 = 3 1/2

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a4 = 2(3 1/2) + 1/2

a4 = 7 + 1/2

a4 = 7 1/2

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an = 2*a_(n-1) + 1/2

The answer is C