My Math Forum Find all the complex solutions of the equation

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 March 16th, 2017, 11:50 PM #1 Newbie   Joined: Mar 2017 From: home Posts: 2 Thanks: 0 Find all the complex solutions of the equation (x^4) - 16 i = 0 Answers' to this question are supposed to be written in the following format: r[cos(degree)+i sin(degree)] . . . (i.e. Don't solve for x)
 March 17th, 2017, 12:02 AM #2 Senior Member     Joined: Sep 2015 From: USA Posts: 1,981 Thanks: 1027 dude, just take the last answer I gave you for this and have $e^{i\phi} = \cos(\phi) + i \sin(\phi)$ Thanks from mymathforumuser
 March 17th, 2017, 02:26 AM #3 Global Moderator     Joined: Oct 2008 From: London, Ontario, Canada - The Forest City Posts: 7,814 Thanks: 1046 Math Focus: Elementary mathematics and beyond Duplicate. See here. Thanks from mymathforumuser

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