Question

The sum of n terms of an AP is given by Sn=2n^2+3n.find the 16th term of the AP

Answer 1

Answer:

Step-by-step explanation:

i HOPE IT is helpful for you

Answer 2

Answer:

Step-by-step explanation:

Given: Sn=2n²+3n

Put n=1

Sn=2(1)²+3(1)

S1=2+3=5

a=5

Put n=2

S2=2(2)²+3(2)

S2=8+6=14

a1+a2=s2

5+a2=14

a2=14-5

A2=9

d=a2-a1

d=9-5=4

a16=a+15d

a16=5+15(4)

a16=5+60

a16=65