Question

Liczby 13,5;x;y;4 tworza ciag geometruczny. Oblicz x i y.

Answer 1

A1=13,5
a4=4
a4=a1q³
4=13,5q³
q³=4/13,5
q³=4:27/2
q³=4*2/27
q³=8/27
q=∛[8/27]
q=2/3

x=13,5*2/3=27/2*2/3=9
y=9*2/3=6