Question

14. Use the arithmetic sequence formula to help the 71th term. * an = a1 + (n − 1)d -5, – 7, 9, ... Your answer O This is a required question

Answer 1

an = a1 + (n - 1)d

a(71) = -5 + (70)2

a(71) = -5 + 140

a(71) = 135