Solve the following recurrence relations (provide a closed form solution):
(a) an = −3an−1, a0 = 4
(b) an = an−1 + 1, a0 = 12
(c) an = 12an−1 + 2, a0 = −1

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2

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