The sum of the series 1 + 2(a2 + 1) + 3(a2 + 1)2 + 4(a2 + 1)3 + ..... – McqOptions

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1.	The sum of the series 1 + 2(a2 + 1) + 3(a2 + 1)2 + 4(a2 + 1)3 + ........... will be:
A.	\(\frac 1 {a^4}\)
B.	1
C.	\(-\frac 1 {a^2}\)
D.	-1
Answer» B. 1

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