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Khan Academy on a Stick
Basic trigonometry
Introduction to trigonometry
Basic trigonometric ratios
Basic trigonometry
Example: Using soh cah toa
Basic trigonometry II
Secant (sec), cosecant (csc) and cotangent (cot) example
Example: Using trig to solve for missing information
Example: Calculator to evaluate a trig function
Example: Trig to solve the sides and angles of a right triangle
Example: Solving a 30-60-90 triangle
Using Trig Functions
Using Trig Functions Part II
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