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Uploaded by elmacdork on Nov 15, 2009
A quick tutorial on finding the exact ratio for the cosine of a angle using the half angle or double angle formula. Mr. Fjelstrom's Benchmark 11.2 covering California Trigonometry Standard 11.0.
Education
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thanks for the vid :) it helped a lot
wafflez842 9 months ago
good tutorial but he needs to clean his nose.
thepianolover4ever 1 year ago
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thanks for the vid :) it helped a lot
wafflez842 9 months ago
good tutorial but he needs to clean his nose.
thepianolover4ever 1 year ago