Question

4. Which of the following are APs? If they form an AP, find the common difference d and
write three more terms.
(vii) 0, -4,-8.-12,..




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Answer 1

given A.P is

0, -4,-8.-12,..

here,

a1 =0

a2= -4

a3 = -8

a4 = -12

a2 - a1 = a3 - a2 = -4

therefore it is in A.P

common difference (d) = -4