Let z be a complex number. Then the angle between vectors z and -… - Vidyadip

MCQ

Let $z$ be a complex number. Then the angle between vectors $z$ and $ - iz$ is

A
$\pi $
B
$0$
✓
$ - \frac{\pi }{2}$
D
None of these

✓

Answer

Correct option: C.

$ - \frac{\pi }{2}$

c
(c) Since the multiplication of a complex number by $ - i$ rotates through it by a right angle in negative (clockwise) direction.

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