UPSC CAPF AC 2014 Paper

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Question : 70 of 125

Marks: +1, -0

Which one among the following is indicated by the following figure

a+ab+ab2+...=‌‌
a
1−b
‌for‌b<1
a>b⇒a3>b3
(a+b)2=a2+2ab+b2
a> b =>-a< - b

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