These are archival webpages, generated on 2023-03-20 by Prove-It Beta Version 0.3, licensed under the GNU Public Licence by Sandia Corporation. See pyproveit.org for the lastest version.
Trigonometry pertains to relationships of the lengths and angles of triangles and has a strong connection to complex numbers expressed in polar form (e.g., $e^{i \theta} = \cos(\theta) + i \sin(\theta)$).
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importproveit%theory # toggles between interactive and static modes