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[" If "A={p in N;p" is a prime and "p=(7...

[" If "A={p in N;p" is a prime and "p=(7n^(2)+3n+3)/(n)],[" for some "n in N}" ,then the number of elements "],[" in the set "A" is "],[[" (a) "1," (b) "2],[" (c) "3," (d) "4]]

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