Question

Which of the following form AP 1,1,2,2,3,3....., 0.3,0.33,0.333....., 1/2,1/4,1/8.... √2,√8,√18,√32...

Answer 1

option B because common difference is same.

Answer 2

we know that in A.p

d=an+1-an

option b is an g.p

option c is a g.p not  a.p

similarly d is not a a.p as it does not fulfill the condition d=an+1-an

option (a)

1,1,2,2,3,3,............fulfills the condition of a.p

as after every two terms there is a difference of 1