Question

An A.P if d=4, n=7 an=4 find a​

Answer 1

Answer:

an=a+(n-1)d

4=a+(6)4

a=-20

Answer 2

Answer:

- 20

Step-by-step explanation:

We know, in APs, a(n) = a + (n - 1)d.

So, here,

=> a(n) = a + (n - 1)d

=> 4 = a + (7 - 1)4

=> 4 = a + (6)4

=> 4 = a + 24

=> 4 - 24 = a

=> - 20 = a = first term of AP