Finding the EXACT Values for sin(10), sin(50), and sin(70) Using the Cubic Formula
13:32
YouTubeJames Elliott
Finding the EXACT Values for sin(10), sin(50), and sin(70) Using the Cubic Formula
This video works to determine the exact values for the sine of 10 degrees, sin(10), the sine of 50 degrees, sin(50), and the sine of 70 degrees, sin(70). It does so by writing a trigonometric equation, changing it to a cubic polynomial equation, investigating its roots, and finally using Cardano's Cubic Formula to determine the three values. It ...
32.9K viewsMar 10, 2021
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