Question

Is -150 a term of an AP 17, 12, 7, 2,.....?

Answer 1

-150 is not the given term of the A.P

Answer 2

a=17,d=-5,an=-150.
-150=17+{n-1}-5
-167=5n+5
n=-167/-5

since n is in fraction,-150is not a term of this AP