Question

Argument of -7i is..??? options are a) 90° b) -90° c) 0 d) 180°​

Answer 1

Answer:

Option B is correct thanks

Answer 2

Answer:

b) -90°

Step-by-step explanation:

The vector - 7 i is along the imaginary number axis on the diagram of complex numbers.

-7i is along the negative imaginary number axis. So. the argument or the angle corresponds to -90°