Q1

MCQ1 mark, −0.33

Which one of the following is a closed form expression for the generating function of the sequence $\{a_n\}$ , where $a_n = 2n +3 \text{ for all } n=0, 1, 2, \dots$ ?

(A)

$\frac{3}{(1-x)^2}$

(B)

$\frac{3x}{(1-x)^2}$

(C)

$\frac{2-x}{(1-x)^2}$

(D)

$\frac{3-x}{(1-x)^2}$

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