We have to determine the trigonometric form of z = -2i

The absolute value of z = -2i

sqrt [ 0^2 + (-2)^2]

=> sqrt 4

=> 2

and the the argument is -90 as the real component is zero.

Therefore the required result is **2 , -90 degrees**

We have to determine the trigonometric form of z = -2i

The absolute value of z = -2i

sqrt [ 0^2 + (-2)^2]

=> sqrt 4

=> 2

and the the argument is -90 as the real component is zero.

Therefore the required result is **2 , -90 degrees**