Question

find the first negative term of the AP 191 182 173​

Answer 1

the first negative term is smaller than 0

i. e., an<0

an=a+(n-1) d

a=191

d=182-191=-9

191+(n-1) (-9)<0

191-9n+9<0

200-9n<0

200<9n

n≥200/9