Question

The nth term of the AP is 5n+2. Find the common difference

Answer 1

an=5n+2
For n=1,a1=5 (1)+2=7
n=2,a2=5 (2)+2=12
Common difference=a2-a1=5

Answer 2

hey dear

here is your answer

an= 5n+2

we take n=1

so

a1= 5*1 +2 = 7

next we take n=2

a2 = 5*2+2 = 12

next step we take n=3

a3= 5*3 +2 = 17

so ,

a1= 2

a2= 12

a3= 17

so the common difference formula is

a3-a2



so

a2 is 12

a1 is 2

so the difference is
17-12=5

so the common difference is 5

answer is 5

hope it helps

thank you