Problem 704

Sir SagarMay 11, 2015May 12, 20150

Write the following complex number in polar form. Express all angles in degrees rounded to the nearest tenth.

-3

Solution:-

-3+0i

$r = \sqrt{x^{2}+y^{2}}$

$r =\sqrt{-3^{2}}$

r = 3

θ = $tan^{-1}(\frac{y}{x})$

θ = $tan^{-1}(\frac{0}{-3})$

θ = 0°

polar form (3,0°)

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