Question

Find the indicated term of the sequence whose nth term is: an = 5n - 4; a12 and a15​

Answer 1

Answer:

a= 12

12×n=5n -4

12n = 5n - 4

12n - 5n = 4

7n = 4

n = 4÷7

n =0.57

if a = 15

an = 5n - 4

15×n = 5n - 4

15n - 5n = 4

10n = 4

n = 4 ÷10

n = 0.4