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Mathematics

Trigonometry

Trigonometry

Triple angle identities
Trig functions of three times an angle
By School Yourself
Triple angle identities
Double angle identities
Trig functions of twice an angle
By School Yourself
Double angle identities
Negative angle identities
Simplify trig functions of negative angles
By School Yourself
Negative angle identities
Addition identities
Simplify trig functions of sums
By School Yourself
Addition identities
Trig identities
The tools for simplifying trig expressions
By School Yourself
Trig identities
Inverse cosine
Another inverse trig function
By School Yourself
Inverse cosine
Trig for coterminals
How trig functions are related for coterminal angles
By School Yourself
Trig for coterminals
Trig for negative angles
Using the unit circle for trig with negative angles
By School Yourself
Trig for negative angles
Trig for larger angles
What's sin(250)? Use the unit circle to tackle bigger angles
By School Yourself
Trig for larger angles
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Trigonometry

Estimation7 Triangles90 Coordinate25 Statistics4

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
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