Asked by Carl

Use Demoivre's Theorem to find the fourth roots of -16. Leave the four roots in trigonometric form. How the heck do i do this?

Answers

Answered by bobpursley
well, if you have 16@520; 16@180;16@900;16@1260

dividing by 4, roots are 4@130, 4@45;4@225;4@315

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