Inverse Trigonometric Functions
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Uploader Comments (waszel)
Top Comments
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I'm pretty sure this just saved my life..... thank you... so much. I thought I was going to go completely insane before I could figure this out.... my professor did NOT do a good job explaining this.... I might actually be able to get this stuff right.... THANK YOU!
1 year ago 13
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thanks alot.... i wish my teacher explained it this way
1 year ago 7
All Comments (45)
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"who's cosine is the 'sex' value" 5:18 lol :D
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@kellykedavra yeah you have to memorize the Trig Functions, learn them, you have to know them intuitively. soh cah toa, thats the start
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@williamk766 unit circle my bro. unit circle.
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someone help me understand why the sin and tangent is never in quadrant 4. TT.TT
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@matt62591 he used pythagorean theorem 1+x^2=16 => x^2=15 => x=sqt15
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so how would you figure out Cot(arccos(-3/5))????
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THANK YOU!!!! OMG !
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Your voice reminds me of Todd from the Fox and the Hound.
Awesome video.
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This will be really useful for my friends who haven't taken trig and were placed into pre-cal. Our pre-cal teacher sucks and I feel bad for the kids who didn't get a great trig teacher like I did. I know all this stuff and my teacher is just confusing everyone lol. I'll most likely show this to my peers and hopefully it will be more useful than my stupid teacher. Thanks!
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how do you get pie over 3 in the first example??
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for the examples I don't get how you got the answers.. you seem to just tell us the answer and move on without any explanation! :(
kellykedavra 10 months ago 2
@kellykedavra If you are referring to the examples similar to say finding the arccos(1/2) to get pi/3, then it is expected that you are already familiar with the unit circle and the fact that cos(pi/3)=1/2. Otherwise, yes, it looks like the numbers just magically appear without any explanation. See my videos "Trigonometric Function Values of Special Angles" and "Reference Angles".
waszel 10 months ago 4