\( z_1 = 3 + 4i \quad \answer [onlineshowanswerbutton]{ \text {Polaire vorm: } 5\left (\cos \left (\tan ^{-1}\left (\frac {4}{3}\right )\right ) + i\sin \left (\tan ^{-1}\left (\frac {4}{3}\right )\right )\right ) } \)
\( z_2 = 5 \left ( \cos \left (\frac {\pi }{4}\right ) + i \sin \left (\frac {\pi }{4}\right ) \right ) \quad \answer [onlineshowanswerbutton]{ \text {Cartesische vorm: } 3 + 4i } \)
\( z_3 = -2 + i \quad \answer [onlineshowanswerbutton]{ \text {Polaire vorm: } \sqrt {5}\left (\cos \left (\tan ^{-1}\left (\frac {-1}{2}\right )\right ) + i\sin \left (\tan ^{-1}\left (\frac {-1}{2}\right )\right )\right ) } \)
\( z_4 = \sqrt {5} \left ( \cos \left ( \tan ^{-1}\left (\frac {-1}{2}\right ) \right ) + i \sin \left ( \tan ^{-1}\left (\frac {-1}{2}\right ) \right ) \right ) \quad \answer [onlineshowanswerbutton]{ \text {Cartesische vorm: } -2 + i } \)
\( z_5 = 5 \quad \answer [onlineshowanswerbutton]{ \text {Polaire vorm: } 5\left (\cos (0) + i\sin (0)\right ) } \)
\( z_6 = 5 \left ( \cos (0) + i \sin (0) \right ) \quad \answer [onlineshowanswerbutton]{ \text {Cartesische vorm: } 5 } \)
\( z_7 = -3 - 4i \quad \answer [onlineshowanswerbutton]{ \text {Polaire vorm: } 5\left (\cos (\pi + \tan ^{-1}\left (\frac {4}{3}\right )) + i\sin (\pi + \tan ^{-1}\left (\frac {4}{3}\right ))\right ) } \)
\( z_8 = 5 \left ( \cos \left (\pi + \tan ^{-1}\left (\frac {4}{3}\right )\right ) + i \sin \left (\pi + \tan ^{-1}\left (\frac {4}{3}\right )\right ) \right ) \quad \answer [onlineshowanswerbutton]{ \text {Cartesische vorm: } -3 - 4i } \)