CBSE Class 11-commerce Answered
the first negative term of the sequence 14,11,8...............
chapter A.P.
Asked by deepakagarwal1024 | 03 Oct, 2018, 09:02: PM
Expert Answer
14,11,8..............
a = 14, d = 11 - 14 = -3
According to teh question,
an < 0
a + (n - 1)d < 0
14 + (n - 1)(-3) < 0
14 - 3n + 3 < 0
17 - 3n < 0
17 < 3n
n > 17/3 = 5.66
n = 6
Hence, first negative term of the given sequence is 6th.
Answered by Sneha shidid | 04 Oct, 2018, 09:45: AM
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