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Trigonometry: Identities

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Uploaded by on Jun 25, 2007

More trig videos at http://www.mathtv.com.

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Education

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Standard YouTube License

  • likes, 14 dislikes

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Top Comments

  • i love you, i learned this from you in 2 min. while it takes my teacher 90min to teach and i still dont get it!

  • Wait, I'm confused....does this actually prove that Jesus rode on dinosaurs?

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All Comments (391)

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  • shit is hard

  • THANK YOU!!!!

  • @joerush25 No, he's a mathematician! :)

  • I have my Pre- cal exam in less than a week and the only thing I have trouble with is this !

    You really helped me :)

  • you know... you are one of the best teachers I've ever seen... you see? I treated you as my real teacher because I am always watching majority of your discussions not only trigonometry but also the other branches of mathematics.. thank you so much

  • We are learning dis shiz in Pre Cal

    and like what ur doing is easy and ur good at teaching it the problem is it just gets a lot harder and longer (thus what she said) but seriously I need help

  • MAGIC!

  • @freshlikewindex what angels?

  • what about when you got to do double angels, addition and subtraction formulas

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