Question

The ne term of an AP is 3n+1, then the sum of n terms is
A)3n²+1
B)n(3+5)/2
C)n(3n+3)/2
D)3n(n+2)/2
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Answer 1

Answer:

The ne term of an AP is 3n+1, then the sum of n terms is

A)3n²+1

B)n(3+5)/2

C)n(3n+3)/2

D)3n(n+2)/2

Step-by-step explanation:

answer is

A. 3n2+1