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this special triangle gives us sin(18º)
Автор: blackpenredpen
Загружено: 2017-08-31
Просмотров: 380058
Описание:
We will compute the exact value of sin(18 degrees), i.e. sin(pi/10), with this 18-72-90 special right triangle. We will also see the golden ratio during the computation when we use the quadratic formula! This is a classic geometry and trigonometry problem. If you like math, then you will enjoy it!
sin(18 degrees) with the quadratic formula: 👉 • Finding the exact value of sin(18 degrees)
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