SOLUTION: An exponential is such that the 3rd term minus the first term is 48. The fourth term minus the second term is 44. Find the common ratio and the first term
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Question 846694: An exponential is such that the 3rd term minus the first term is 48. The fourth term minus the second term is 44. Find the common ratio and the first term
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Tn = t * r^(n - 1)
T3 = t * r^(2)
T1 = t
t * r^2-t=48
T4 = t * r^3
T2 = t * r
t*r^3- t*r=44,
t*r^2-t=48
r = 11/12, t = -6912/23
I suspect there is a mistake since this is similar with 44 instead of 144
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