Question

which term of AP 64 60 56 and 52 is zero​

Answer 1

$\huge{\mathfrak{\boxed{\red{Answer}}}}$

a = 64

d = 60-64 = -4

an = 0

an = a+(n-1)d

0 = 64+(n-1)(-4)

0 = 64-4n+4

64 = 4-4n

64-4 = 4n

60 = 4n

n = 60/4

n = 15

So, zero is 15th term of the A.P.