Question

check whether -150 is a term of this A.P. : 11, 8, 5, 2 or not

Answer 1

Answer:

an=-150

a=11

d=-3

Using nth term of AP

Answer 2

a=11

d=-3

an=-150

an=a+(n-1)d

-150=11+(n-1)-3

-150-11=-3n+3

-161-3=-3n

-164/-3=n

n=164/3

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