Question

Which of the following are APs ? If they form an AP, find the common difference d and
write three more terms.
(i) 2, 4, 8, 16,...
(ii) 2, 5, 3,
5 7
2 2
(iv) - 10, -6, -2,2, ...
(iii- 1.2,-3.2, -5.2, -7.2,...
(v) 3, 3 + V2, 3 + 272, 3 + 372, ...
(vi) 0.2, 0.22, 0.222,0.2222, ...
(vii) 0, -4,-8,-12,...
(​

Answer 1

Answer:

(iii) (iv) (vii) are AP

common difference

(iii)d = -3.2-(-1.2) = -3.2+1.2 = -2

(iv) d= -6-(-10) = -6+10 = 4

(vii) d= -4-0 = -4