Question

write modulus and arguments of -1-i underoot 3
of this complex no.

Answer 1

complex number = a + i b
a = -1. b =
$- \sqrt{3}$

modulus =
$\sqrt{ {a}^{2} + {b}^{2} } = \sqrt{( - 1)^{2} + {( - \sqrt{3} )}^{2} } = 2$
Argument =
${tan}^{ - 1} \frac{b}{a} = {tan}^{ - 1} \frac{ - \sqrt{3} }{ - 1} = \frac{\pi}{3}$

Answer 2

ANSWER IS IN THE IMAGE