Which statement is true for any two complex numbers z1z_1z1 and z2z_2z2?
∣z1⋅z2∣=∣z1∣⋅∣z2∣|z_1 \cdot z_2| = |z_1| \cdot |z_2|∣z1⋅z2∣=∣z1∣⋅∣z2∣
∣z1+z2∣=∣z1∣+∣z2∣|z_1 + z_2| = |z_1| + |z_2|∣z1+z2∣=∣z1∣+∣z2∣
The argument of z1+z2z_1 + z_2z1+z2 is the product of their arguments
z12=z22z_1^2 = z_2^2z12=z22 implies z1=z2z_1 = z_2z1=z2