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* Update index.md
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2018-10-15 23:00:33 +02:00
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client/src/pages/guide/english/mathematics/intro-to-the-trigonometric-ratios/index.md
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@ -3,11 +3,9 @@ title: Intro to the Trigonometric Ratios
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## Intro to the Trigonometric Ratios
This is a stub. <a href='https://github.com/freecodecamp/guides/tree/master/src/pages/mathematics/intro-to-the-trigonometric-ratios/index.md' target='_blank' rel='nofollow'>Help our community expand it</a>.
All of the trigonometric functions of an angle θ can be constructed geometrically in terms of a unit circle centered at O.
<a href='https://github.com/freecodecamp/guides/blob/master/README.md' target='_blank' rel='nofollow'>This quick style guide will help ensure your pull request gets accepted</a>.
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https://en.wikipedia.org/wiki/Trigonometry#/media/File:Circle-trig6.svg
#### More Information:
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