If the sum of an infinite G.P. be 3 and the sum of the squares of its term is also 3 , then its ...

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If the sum of an infinite G.P. be 3 and the sum of the squares of its term is also 3 , then its first term and common ratio are
(A) \( 3 / 2,1 / 2 \)
(B) \( 1 / 2,3 / 2 \)
(C) \( 1,1 / 2 \)
(D) none of these
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