Let be a sequence such that a1 + a2 +....+ an=\(\frac{n^2+3n}{(n+1) (n+2)}\) If \(28 ∑^{10}_{k=1} \frac{1}{a_k} = P _1 P_ 2 P _3 . . . P_ m\) , where p1, p2, …..pm are the first m prime numbers, then m is equal to
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The Correct Option is B
Solution and Explanation
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