Question

is -150 a term of AP 26,23,20.....? ​

Answer 1

Answer:

a=26

d=23-26

=-3

Using formula,an=a+(n-1)d

-150=26+(n-1)-3

-150=26-3n+3

-150=29-3n

-150-29=-3n

-189=-3n

189=3n

189/3=n

63=n

Therefore,yes -150 is the 63rd term of an Ap nd also the term of Ap