Question

If 8,a,b,-3 are in AP then find a+b

Answer 1

Step-by-step explanation:

-3-b=a-8

-3+8=a+b

5=a+b

Answer 2

Step-by-step explanation:

8,a,b,-3

d=a-8

d2 =b-a

let d=1

A2 = 8+1

=9

A3=8+2

=10

a+b=9+10=19