Question

The sequence -10,-4,2,8.... A. is an A.p., Reason d = -6 B. is an A.p., Reason d = -14 C. is an A.P., Reason d = 6 D. is not an A.P.​

Answer 1

Here Term 1=-10

Term 2= -4

Term 3=2

Term 4=8

to find common difference in an ap

T₂-T ₁= -4-(-10)

=-4+10

=-6

T₃-T₂ = 2-(-4)

2+6

8

it is not on AP because the common difference is not constant

choice D it is the right answer