If $z = \cos \frac{\pi }{6} + i\sin \frac{\pi }{6}$ then

  • A

    $|z|\, = 1,\,\,\,\,arg\,z = \frac{\pi }{4}$

  • B

    $|z|\, = 1,arg\,z = \frac{\pi }{6}$

  • C

    $|z|\, = \frac{{\sqrt 3 }}{2},\,arg\,z = \frac{{5\pi }}{{24}}$

  • D

    $|z|\, = \frac{{\sqrt 3 }}{2},\,\,arg\,z = {\tan ^{ - 1}}\frac{1}{{\sqrt 2 }}$

Similar Questions

If $|{z_1}| = |{z_2}| = .......... = |{z_n}| = 1,$ then the value of $|{z_1} + {z_2} + {z_3} + ............. + {z_n}|$=

Let $Z$ and $W$ be complex numbers such that $\left| Z \right| = \left| W \right|,$ and arg $Z$ denotes the principal argument of $Z.$

Statement $1:$ If arg $Z+$ arg $W = \pi ,$ then $Z = -\overline W $.

Statement $2:$ $\left| Z \right| = \left| W \right|,$ implies arg $Z-$ arg $\overline W = \pi .$

  • [AIEEE 2012]

The amplitude of the complex number $z = \sin \alpha + i(1 - \cos \alpha )$ is

Find the modulus and argument of the complex numbers:

$\frac{1}{1+i}$

$\left| {(1 + i)\frac{{(2 + i)}}{{(3 + i)}}} \right| = $