9000068703

SubArea: 
Geometric sequences
Level: 
B
Project ID: 
9000068703
Accepted: 
1
Clonable: 
0
Easy: 
1
Identify the real number x which converts the numbers a1=−x, a2=−5 and a3=5 into three consecutive numbers of a geometric series.
x=−5
x=0
x=5
x=−10
x=10