Which term of the AP : 121, 117, 113, . . ., is its first negative term? [Hint : Find n for an < 0]
he given A .P. is 121, 117, 113, ... Here, a = 121
d = 117 – 121 = –4 Let the nth term of the A.P. be the first negative term. Then,
Least integral value of n = 32. Hence, 32nd term of the given A .P. is the first negative term 9.
