Question

Question 14

The function sin) = 2n - 5 represents the value of the nth term in a sequence. What is the sum of the 1st and 6th terms of the sequence?

Answer 1

4

Explanation:

Using the nth term formula

a₁ = 2(1) - 5 = 2 - 5 = - 3

a₆ = 2(6) - 5 = 12 - 5 = 7

Then

a₁ + a₆ = - 3 + 7 = 4