Question

question number 1 please help​

Answer 1

Answer:

-1

Step-by-step explanation:

1/2q , (1-2q)/2q , (1-4q)2q ....

As

First term is 1/2q and Second term is (1-2q)/2q

∵ As Common difference is equal to = Next term -  Previous term

∴ d = (1-2q)/2q - 1/2q

     =  (1-2q-1)/2q

⇒ d = -1