Question

How many terms are there in the AP 12, 8, 4, ………… - 8? *​

Answer 1

Answer:

there are 5 terms in this

Answer 2

a=12 an=-8

d=a2-a1

=8-12

=-4

an=a+(n-1)d

-8=12+(n-1)-4

-2=12+(n-1)

-14=(n-1)

=-13