Question

Which term is 0 for A.P. 81, 78, 75, …….​

Answer 1

Answer:

the 28 th term of the AP is 0

Answer 2

Step-by-step explanation:

Tn=0

a=81(first term)

d=(-3) the difference between 2nd and first term

a+(n-1)d=0

81+(n-1)(-3)=0

81-3n+3=0

84-3n=0

-3n=-84

n=84/3

n=28