Trigonometry lesson 12 - exact values

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Australia Magic Monk
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Published on ● Video Link: https://www.youtube.com/watch?v=-AF_JPzqrVI


Duration: 20:27
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In this lesson you learn how to express trigonometric ratios as exact values. For example, instead of typing cos30 in the calculator to get 0.866, after doing this tutorial you will be able to write cos30 = sqrt(3)/2 without using the calculator.



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