Question

given that 83,79,75,........ are in ap . find the nth term from the beginning

Answer 1

Answer:

83+(n - 1)*(-4) as the common difference is -4 and 1st term is 83

Answer 2

Answer:

87 - 4n

Step-by-step explanation:

Here, a = 83, d = 79 - 83 = -4

We know, tn = a + (n - 1)d = 83 + (n - 1)*-4

= 83 - 4n + 4 = 87 - 4n.