Trigonometric Functions Resources
Websites
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If you like to hear stories with more than one character's viewpoint, then this math page is for you. It will go over it all again with a different approach.
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All the regular trig stuff, but it also has a really good section on solving trigonometric equations. It's also got some solid practice problems with detailed solutions.
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Love jokes? Or history? This site is loaded with trig jokes, trig history, and all the regular trig stuff, too.
Videos
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A basic introduction to trigonometric functions: sine, cosine, and tangent. (Not to mention some quality classical tunes.)
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Pythagoras would be proud. You're welcome, world.
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You'll find more trig than you can shake a stick at here.
Games and Tools
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Explore angles in project T.R.I.G. You won't be disappointed.
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Calling all crossword puzzle lovers. This is for you.
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Around and around we go. Sine, cosine, and tangent are graphed as you rotate around the unit circle. You can see all three at once—in color.