Question

The common ratio of the GP, 5, -10,20 ,-40...........
*​

Answer 1

Answer:

-2.

Step-by-step explanation:

$r = \frac{ar}{a}$

ar= -10

a= 5

r= -10/5

r= -2

NOTE: YOU CAN TAKE ANY TWO CONSEQUETIVE TERMS FOR THIS U ALWAYS END GETTING THE SAME COMMON RATION.