Question

what is the 6thbterm of an Ap 12 9 6...​

Answer 1

In this AP,

a = 12

d = 9-12 = 3

And, n=6

$\sf a_6=12+(6-1) \times-3\\\\\sf a_6=12-15\\\\\star\boxed{\bf a_6=-3}$..