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A. (ii)
B. None of the other choices is
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C. (i)
D. (iii)
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sh the exam.
Find a recursive formula for the sequence
1
an
==
n = 1, 2, 3,...
n'
1
(i) a₁ =1, a+₁ = a₁₂+ ·
(n = 1, 2, 3,...)
n+1
1
(ii) a₁ = a+1 =
an +1
(n = 1, 2, 3,...)
(iii) a₁ =1, an+l
ап
a +1
(n=1, 2, 3,...)
