Question

Which one of the following is a general form of geometric progression?

• A. $1,1,1,1,1$
• B. $1,2,3,4,5$
• C. $2,4,6,8,10$
• D. $-1,2,-3,4,-5$

Answer 1

The correct option is A $1,1,1,1,1$

Lets see option A:

Sequence is $1,1,1,1,1$

General form of GP is $a=1$ and $r=1$

Here ratio is constant throughout.

Thus in all options, option A is correct.

The geometric progression is $1,1,1,1,1,............$.