Question

The first term of a GP is 3 and the 10th term is 15.48, find the sum of the first 14 terms of the GP ​

Answer 1

Answer:

1.5{5.16^(13/9) - 1} = 14.55

Step-by-step explanation:

a = 3

r^9 = 15.48/3 = 5.16

S14 = 1.5(r^13 -1) = 1.5{5.16^(13/9) - 1} = 14.55