Question

The nth term of a g.p is 2(0.5)^n-1 then the common ratio is

Answer 1

A Geometric Progression is of the form:

$a_n = ar^{n-1}$


where a is the first term and r is the common ratio.

here, the given GP is:

$a_n = 2 \times (0.5)^{n-1}$

Comparing with the standard form,

common ratio = 0.5

Answer 2

I thik this will help u answer is 0.5