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The sum of first n odd positive integers is : (1) n (n+1). (2) n(n+1)/2 (3) n2 (4) 2n+1 |
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Answer» 2n+1 Let's VERIFY the answer : N = 1 then 2n+1 = 2×1+1 = 3 (ODD) n = 2 then 2n+1 = 2×2+1 = 5 (odd) |
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