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If the sum of the first $n$ terms of an A.P be $3n^2 + n$ and its common difference is $6$, then its first term is
- (a)2
- (b)3
- (c)1
- (d)4
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(D) 4
If the sum of the first n terms of an A.P be 3n2 + n and its common difference is 6 , then its first term is
CBSE Class 10 Maths PYQ · Arithmetic Progressions · Term & Sum Mix · 1 Mark · March 2023 · Standard
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