Which one of the following is NOTtrue for complex number Z1 and Z2?
`Z_1/Z_2=(Z_1barZ_2)/|Z_2|^2`
`|Z_1+Z_2|<=|Z_1|+|Z_2|`
`|Z_1-Z_2|<=|Z_1|-|Z_2|`
`|Z_1+Z_2|^2+|Z_1-|Z_2|^2=2|Z_1|^2+2|Z_2|^2`
explain