1.If a>0a > 0a>0, a∈Ra \in \mathbb{R}a∈R, z=a+2iz = a + 2iz=a+2i and z∣z∣−az+1=0z|z| - az + 1 = 0z∣z∣−az+1=0 thena.z is always a positive real numberb.z is always a negative real numberc.z is purely imaginary numberd.such a complex z does not existLogin to continueOnly logged in users canattempt or see the solution.