Question

write an AP whose first trem is -9 and common difference is -4​

Answer 1

-125, -4.25 , -7.25 , -10.25.....

Answer 2

Answer:

Solve by your own

Step-by-step explanation:

The formula to find common difference is d = (an + 1 – an ) or d = (an – an-1).

If the common difference is positive, then AP increases. For Example 4, 8, 12, 16….. ...

If the common difference is negative then AP decreases. ...

If the common difference is zero then AP will be constant.