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This page provides a list of educational videos related to Trigonometric Ratios. You can also use this page to find sample questions, apps, worksheets, lessons , infographics and presentations related to Trigonometric Ratios.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal explains how the trigonometric ratios are derived from triangle similarity considerations.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal explains how the trigonometric ratios are derived from triangle similarity considerations.
Trigonometric Ratios of Special Angles
By AlRichards314
This video shows us how we determine the trigonometric ratios for the angles of 30 degrees, 45 degrees, and 60 degrees. Keep in mind that the ratios of the sides corresponding to these angles never change (even though the side lengths may change). That means that knowing the values for these trig ratios means you'll know them forever! They won't change!
Secant (sec), cosecant (csc) and cotangent (cot) example | Trigonometry | Khan Academy
By Khan Academy
This Khan Academy video contains an example problem on finding the six trigonometric ratios of a right triangle.
Reciprocal trig functions
By Khan Academy
Sal finds all six trigonometric ratios (sine, cosine, tangent, secant, cosecant, and cotangent) of an angle in a given right triangle.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal is given a diagram with multiple right triangles and is asked to match different expressions with different trig values.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal is given a diagram with multiple right triangles and is asked to verify identities relating to trig ratios in those triangles.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal is given a diagram with multiple right triangles and is asked to verify identities relating to trig ratios in those triangles.
Trigonometric functions and side ratios in right triangles
By Khan Academy
Sal is given a diagram with multiple right triangles and is asked to match different expressions with different trig values.
Using trigonomteric ratios - SOH CAH TOA
By Mr Jamieson Maths
In this 'in classroom' video, you will see examples of how to use three trigonometric ratios, sin cos and tan, to solve for sides and angles in right triangles.