hello:
the sequence is a geometric sequence : An+1=q×An q : is a common ratio
or : q=An+1/An
ex01 :
the sequence 3 , 6 , 12 , 24 , 48 is a geometric sequence because:
48/24=24/12=12/6=6/3=2 ( common ratio : q)
ex02 :
the sequence : An =5×3^n is a geometric sequence because:
An+1= 5×3^(n+1)
= 5×3^n ×3
= 3×( 5×3^n)
An+1 =3×An ( common ratio : q = 3 )