Trigonometry in 3D
Subject: Mathematic | Topics:

Primary focus of this lecture is to present on Trigonometry in 3D. In a triangle, there are six basic elements: 3 sides and 3 angles. Not any three line segments may serve as the sides of a triangle. In modern trigonometry these relations are extended to arbitrary angles. This can be done, for example, by observing the projections of a rotating radius of a circle and a tangent at the end of the radius.

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