This video explains how to find the exact values of trig functions such as sine, cosine, and tangent using the 30-60-90 and 45-45-90 reference triangles and using SOHCAHTOA.
Trigonometry – Basic Introduction:
Introduction to Angles:
Radians and Degrees:
What Exactly Is a Radian?
Coterminal Angles:
Decimal Degrees to DMS:
Arc Length of a Circle and Sector Area:
Linear Speed and Angular Velocity:
Clock to Angle Problems:
The Unit Circle:
How To Remember The Unit Circle Fast:
Reference Angles:
The Six Trigonometric Functions:
How To Solve Right Triangles:
Reciprocal Identities:
Quotient Identities:
Even and Odd Trigonometric Identities:
Pythagorean Identities:
The Pythagorean Theorem:
Evaluating Trigonometric Functions Using Periodic Properties:
How To Find The Exact Value of Trig Functions:
Special Right Triangle Trigonometry:
Angle of Elevation Problems:
How To Graph Trigonometric Functions:
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