Assume C and D are chosen at random from {1, 2 . . . , n}. Let pn be the probability that C + D is a perfect square. Compute limn→∞ √npn. (where √npn  is squareroot of n multiply with 'p' subscript n...)

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Sequence and Series

A sequence is defined as a collection of things. Series is defined to sum the things one by one in the sequence.  It was invented by German mathematician Carl Friedrich Gauss.