Using the Cosine Law
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Uploader Comments (dougsimmsonline)
Top Comments
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In nine minutes this man taught me more than my teacher did in two weeks. I am forever in your debt, good sir.
4 years ago 22
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Whys math such a bitch...
1 year ago 10
All Comments (73)
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math why cant you solve your own problems.... anyways thanks for the help....
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omg i actually understand this :D look out quiz I'm acing you for the first time in my life
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thank u soooo much!
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what does cosine actually mean
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Your an amazing teacher.
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Thank you VERY much. My Honors math teacher is horrible, explaining things so vaguely, and when I ask him a question, he makes no sense at all. We have been doing trig for 1 month and I couldn't understand the cosine law. But your nine minutes just taught me more than a months teaching from my teacher. Much appreciated for all the help sir.
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thanks for the help!
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i have a very important question but i dont know what formula to use. If anyone wants to help me out its "Find the length of side "h" in the triangle, given that angle A measure 40 degrees and the distance from C to A is 25"
Freshhotwater 9 months ago
@Freshhotwater if it is a right triangle, use cos40=25/x
dougsimmsonline 9 months ago
I have some problems I need help with. Can anyone help me, my final exam is next thursday, thanks.
A tree cats 25m shadow when the elevation of the sun is 36 degrees. Find the height of the tree to the nearest tenth of a metre.
fanofwrestling123 2 years ago
The TOA Formula will solve this:
tan36=height/25
dougsimmsonline 2 years ago
58^2 is not 3346!
its 3364!
i got confused why my calc has a different answer!
amf
access08 2 years ago 3
I will make an annotation on the video to point out my mistake to future viewers. Thanks for showing it to me.
dougsimmsonline 2 years ago