Question

Which one of the following sequence is both A.P and G.P
a) 1,2,3,4........
b) 2,4,8,16,32.......
c) x,x,x,x........

Answer 1

Answer:

A is ap1,2,3,4 and B is 2,4,8,16,32Gp

Answer 2

Answer:

Option (c) is correct

Step-by-step explanation:

• First case:-

Common difference is 1.

Common ratio is different.

So, it is not G.P.

• Second Case :-

Common difference is different in each.

But Common ratio is same i.e. 2.

So it is G.P. but not an A.P.

• Third case:-

Common difference is 1.

And Common ratio is also 1.

Therefore it is both A.P. and G.P.

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