Question

if the sum of first n terms of an AP is 2n^2+3n then what is it's second term​

Answer 1

Step-by-step explanation:

second term= 2 ×(2)2+3×2=20

Answer 2

Answer:

Thus A2=14-5=9

So 2nd term=9

Step-by-step explanation:

Sum of n terms is given by

Sn=2n² +3n

Let the first nad @nd trerm are A1 and A2

So S1=sum of I term=A1

=2*(1)²+3*1

A1=2+3=5

Sum of first 2 trms

S2=A1+A2

2*(2)²+3*2=A1+A2

2*4+6=5 +A2

14=5+A2

Thus A2=14-5=9

So 2nd term=9