Question

the n -1 the term of an ap is given by 7 12 17 22 is dash​

Answer 1

Answer:

the answer is:5.

Step-by-step explanation:

hope it will help you.

Answer 2

Answer:

5n-3

Step-by-step explanation:

an = 7 + (n-1)5= 2+5n

so an-1 = 2 +5(n-1)= 5n-3