Question

in an AP ,if a=8 n=5 and Tn =0, then find the value of d

Answer 1

a = 8

n = 5

Tn = 0

Tn = a + ( n - 1 )d

0 = 8 + 4d

- 8 = 4d

- 2 = d

Answer 2

Heya,

According to the question,

In an A.P.

a = 8
n = 5
Tn = 0

So,
Tn = a + (n - 1)d

0 = 8 + (5 - 1)d

d = -8/4

d = -2. ..... Answer

Hope this helps....:)