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Mathematics
Trigonometry
Trigonometry
Triple angle identities
Trig functions of three times an angle
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Double angle identities
Trig functions of twice an angle
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Negative angle identities
Simplify trig functions of negative angles
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Addition identities
Simplify trig functions of sums
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Trig identities
The tools for simplifying trig expressions
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Inverse cosine
Another inverse trig function
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Trig for coterminals
How trig functions are related for coterminal angles
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Trig for negative angles
Using the unit circle for trig with negative angles
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Trig for larger angles
What's sin(250)? Use the unit circle to tackle bigger angles
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Trigonometry
Estimation
7
Triangles
90
Coordinate
25
Statistics
4
Teachers
Danyelle Stesner
Member
United States of America
Ryan Jackson
Member
Toms River, United States of America
Karan Modi
Member
Yanbu Al-Bahr, Saudi Arabia
Brian McLogan
Member
Jacksonville, United States of America
Martin P
Teacher
Canada