Question

What is the Geometric sequence of 256, 192,144, 108...

Using the explicit formula

Answer 1

a = 256 ;
ar = 192 ;
r = 192 / 256 = 0.75 ;
ar^2 = 144;
r^2 = 144 / 256 = 0.5625 ;
r =
`√(0.5625) =0.75` ;
where r ≠ 0 is the common ratio and a is a scale factor ;