Question

In an A.P If a=4,n=7and an=4 then the value of 'd' is​

Answer 1

answer attached below

Answer 2

Answer:

d = 0

Step-by-step explanation:

an = a + (n-1)d .......... 1

an = 4 .......... 2

From 1st and 2nd

4 + 6d = 4. (a = 4 and n = 7)

6d = 0

d = 0