Question

nth term of ap 13,8,3,-2 full steps with given ​

Answer 1

Answer:An=a+(n-1)d

a=13

d=5

An=13+(n-1)5

An=13 + 5n - 5

An=8+5n (Answer)

Answer 2

Step-by-step explanation:

To find the nth term

a=13

d= a2-a1

=8-13

=-5

An=-2

As we know that,

An = a+(n-1)d

-2=13+(n-1)(-5)

-2=13-5n+5

-2=18-5n

-5n=-2-18

-5n=-20

here minus gets cancelled on both the sides so we get,

n=20/5

therefore n=4