Question

Find the sum of two middle most terms of an ap -4/3,-1,-2/3,......,4 1/3

Answer 1

Answer:

$a = - \frac{4}{3} \\ \\ d = \frac{1}{3} \\ \\ two \: \: terms \: \: is \: \: a + 3d \: \: and \: \: a + 4d \\ \\ = - \frac{4}{3} + 1 \: \: and \: \: - \frac{4}{3} + \frac{4}{3} \\ \\ = - \frac{1}{3} \: \: and \: \: 0$