Question

the common ratio for the GP 1 ,-5,25,-125..............​

Answer 1

Answer:

it is -5

Step-by-step explanation:

Hope this will help u

Answer 2

Answer:

The common ratio of the given GP is -5

Step-by-step explanation:

We know that the common ratio of a Geometric Progression is the ratio of the (n+1)th term to the nth term.

Here, the (n+1) th term = 25

and the nth term = -5

Therefore, the common ratio = $\frac{25}{-5}$ = -5

We can also verify this by finding the common ratio for the next term,

Here, the (n+1) th term = -125

and the nth term = 25

Therefore, the common ratio = $\frac{-125}{25}$ = -5

which is also same.

Therefore, the common ratio of the given GP is -5