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All India Engineering / Architecture Entrance Examination (AIEEE) CBSE Guess > AIEEE > AIEEE Papers > 2009 > Maths AIEEE 2009 Maths Q. 11. Statement-1: The variance of first n even natural numbers is . Statement-2: The sum of first n natural numbers is and the sum of squares of first n natural numbers is
Sol: Answer: (1) Q. 12. Statement-2: f is a bijection.
Sol:
Answer: (3)
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