In a given geometric sequence gn, g(4) = 5 and g(6) = 11.25. What is g(14)+g(17)?
问题描述：
In a given geometric sequence gn, g(4) = 5 and g(6) = 11.25. What is g(14)+g(17)?
(A)8/27
(B)4/9
(C)2/3
(D)8/9
(E)9/8
答
it should be none of the above because g(6) > g(4) means that the sequence is growing bigger...g(14) and g(17) should be bigger than g(6) but all the answers are smaller than 1 except E but E is only 1.something...