Question

Which term of an ap: 150,147,144..... is the first negative number

Answer 1

Answer:

Step-by-step explanation:

In the AP 150, 147, 144, … the common difference is -3.

The first negative term will be -3.

Tn = a +(n-1)d = -3, or

150 + (n-1)(-3) = -3, or

n-1 = (150+3)/3 = 153/3 = 51, or

n = 52.

The 52nd term will be the first negative term.