Question

find common difference
In
an
A .P ,
tn = 3n-2

​

Answer 1

Step-by-step explanation:

Given, t

n

=3n+5

On putting n=1,2,3,....., we get

t

1

=3(1)+5=8

t

2

=3(2)+5=6+5=11

t

3

=3(3)+5=9+5=14

The required A.P. is 8,11,14,......

Answer 2

Step-by-step explanation:

For n = 2, T2 = 3 *2 - 2 = 6 - 2 = 4. a2 = 3. Common difference = a2 - a1 = 3 - 1 = 2.