Question

In an AP a=4 a3=64 then a2

Answer 1

We have

a=4 and

a3=64

→64=a+2d

→64=4+2d

→60=2d

→d=30

So,

a2=a+d=4+30=34

Answer 2

Answer:

A2 =34

Step-by-step explanation:

in this AP a =4

and A3=a+2d

putting the value of a in the equation

64= 4+2d

64-4=2d

60/2=d

30=d

here A2 =a+d

4 +30=34