Question

Find the
value of nth term of an AP
Tn - ?
a = 13 , d =- 4​

Answer 1

Answer:

given a= 13, d = 4 . to find nth term

nth term Tn = a + (n-1)d

= 13 + (n-1)4

= 13 + 4n - 4

= 9 + 4n

and if d = -4 then

Tn = 13 + (n-1)(-4)

= 13 - 4n + 4

= 17 - 4n

Answer 2

given

a=13

d=-4

Tn = a + (n-1)d

13 + (n-1)-4

13 + -4n +4

Tn = -4n+17