Question

4. Which of the following are APs ? If they form an AP, find the common differenced and
write three more terms.
(i) 2,4,8,16,......​

Answer 1

Answer:

(i) 2,4,8,16,......

a1=2.

d=a2-a1=4-2=2.

d=a3-a2=8-4=4.

d=a4-a3=16-8=8.

d is not constant.

given expression is not an A.P.

Answer 2

Answer:

32,64,128 are next three terms of that AP