If |a| lt 1and |b| lt 1 , then the sum of the series a(a+b) + a^2 (a^2 – InterviewSolution

1.	If \|a\| lt 1and \|b\| lt 1 , then the sum of the series a(a+b) + a^2 (a^2 + b^2) + a^3 (a^3 + b^3) +… upto oo is:
Answer» a. `(a^2)/(B) +1` b. `(a^2)/(1-AB)` C. `(a^2)/(1-a^2) + (ab)/(1-ab)` d. `(a^2)/(b^2) + (1)/(ab)` ANSWER :C

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