Question

which term of the ap is 2 -1 -4 ........ -70

Answer 1

Answer:

let the (-70) be 'n' term.

a=2

a=(-1)-2=(-3)

a+(n-1)d=(-70)

2+(n-1)(-3)=(-70)

(n-1)(-3)=(-72)

(n-1)=24

n=25