clockwise   2 videos

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  Parametrizing a Circle

  Precalculus Vectors and Parametric Equations

  How to write the parametric equations of a circle centered at (0,0) with radius r, oriented counter-clockwise.

  the unit circle cosine sine parametrization parametric equations circle counter clockwise
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  Rotations

  Geometry Transformations

  How to define a rotation and what information is necessary to perform a rotation.

  isometry transformation point of rotation angle of rotation direction counterclockwise clockwise