Question

.The nth term of an AP is 7 - 4n . What is common difference?

Answer 1

Step-by-step explanation:

Given , an=7-4n

a1 = 7-4*1=3

a2 =7-4*2= -1

a3 =7-4*3 =-5

ap: 3,-1,-5.............

d =a2-a1

-1-3 =-4