Question

if ap and aq are two consecutive terms of an A.P then find the common difference​

Answer 1

Answer

Common difference = difference between two consecutive terms

−4−(0)=−4

−8−(−4)=−4

−12−(−8)=−4

Since the difference between two consecutive terms is constant =−4

Therefore, the given sequence is in A.P.

Next three terms are = previous term + common difference

−12+(−4)=−16

−16+(−4)=−20

−20+(−4)=−24