Question

(i) If tn = a + (n - 1)d and a = 8, d = 4; then find the value of t

Answer 1

8+(n-1)4
=8+4n-4.
=4n+4
=n 1,2,3....

Answer 2

If a=8 and d=4 then
Tn =a+(n-1)d
Tn=8+(n-1)4
=8+4n-4
Therefore
Tn=4n+4