Question

which term of the a.p. 84,80,76,....is 0​

Answer 1

Answer:

21th term

Step-by-step explanation:

I hope this answer will help you.

Answer 2

Answer:

a = 84

d = 80 - 84 = -4

l = 0

l = a + (n-1) d

0 = 84 + (n-1)-4

-84 = -4(n-1)

21 = n - 1

n = 22

hope it helps you