If the sum of n terms of an A.P. is 3n2 + 5n then which of its terms i – McqOptions

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1.	If the sum of n terms of an A.P. is 3n2 + 5n then which of its terms is 164 ?
A.	6th
B.	7th
C.	8th
D.	one of these
Answer» C. 8th

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