I have a question from GeometricSeries(c2) and I'm stuck on (c)(i).
The nth term of a geometric sequence is Un, where Un=3x4^n
(a) Find the value of U1 and show that u2=48
(b) Wriste down the common ratio of the geometric sequence.
(c) (i) Show that the sum of the first 12 terms of the geometric sequence is 4^k - 4where k is an integer
(ii) Hence find value of of Omega with 12 terms and first term n=2 Un.