Question

Sn=3n2-n find nth term 1st term and common difference

Answer 1

Step-by-step explanation:

S1=3+2=5 therefore t=5

S2=3*2(2) +2*2=12+4=16

d=16-5=11

so AP is 5,11,17,23........

tn=a+(n-1)d

5+(n-1)6

=6n-1