Question

find the value of the middle term of the AP -6, -2, 2 ...56​

Answer 1

Ap :-6,-2,2,.......,56

a=-6

anth=56

d=4

so by formula

an=a+(n-1)d

56=-6+(n-1)4

n=16.5

for the middle term

=n/2

=16.5/2

=8.25