1003049203

SubArea: 
Absolute value
Level: 
C
Project ID: 
1003049203
Accepted: 
1
Clonable: 
0
Easy: 
1
Identify which of the statements is false.
∀a, b∈R:|a+b|=|a|+|b|
∀a, b∈R:|a⋅b|=|a|⋅|b|
∀a∈R, b∈R∖{0}:|ab|=|a||b|
a∈R:|a|=|−a|