In a certain sequence, the term xn is given by the formula xn=2xn−1−12(xn−2) for all n ≥ 2. If x0 = 3 and x1 = 2, what is the value of x3 ?_出国考试答疑器_GMAT_试题

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题目：

In a certain sequence, the term x_n is given by the formula

x_{n} = 2 x_{n - 1} - \frac{1}{2} (x_{n - 2})

for all n ≥ 2. If x₀ = 3 and x₁ = 2, what is the value of x₃ ?

选项:

A、2.5

B、3.125

C、4

D、5

E、6.75

答案:

C

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