If the sum of an infinite GP and the sum of square of its term is 3, then the common ratio of the first series is

JEE Main Mathematics question

If the sum of an infinite GP and the sum of square of its term is , then the common ratio of the first series is

Answer: (B)

With first term and ratio (): and . From the first, ; then , so and . The common

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Question ID VK-021676