SignUpUniversity Algebra
The University of New South Wales, , Prof. Chris Tisdell
Updated On 02 Feb, 19
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The University of New South Wales, , Prof. Chris Tisdell
Updated On 02 Feb, 19
Contents:
Complex numbers & basic calculations - Complex numbers, polar form & basic operations - Complex numbers and sketching regions - How to solve polynomial equations involving complex numbers -Trig identities via complex numbers - How to solve problems from algebra
4.1 ( 11 )
I discuss a simple example illustrating how to obtain trigonometrical identities via complex numbers. In particular, the method involves relationships between sin, cos and the exponential. Such ideas are seen in high-school and first-year university mathematics.
The relationship between $cos theta$, $sin theta$ and $e^{itheta}$ and resulting trig simplifications can be more easily worked with, for example, in integration.
Sam
Sep 12, 2018
Excellent course helped me understand topic that i couldn't while attendinfg my college.
Dembe
March 29, 2019
Great course. Thank you very much.
