# Resources

You are logged in with the user ID:

Click the links below to learn more about

Defining Sine and Cosine using the Unit Circle

Resource | Rank | Resource Type | Rate this Resource ( )Why? |

http://youtu.be/IU1KNS0OHwk | video | Rate this resource | |

http://www.khanacademy.org/video/unit-circle-definition-of-trig-functions?playlist=Trigonometry | video | Rate this resource |

The rank is based on the ratings from students and instructors! Please vote, after you have used the resource!

## Additional Resources (if any)

Learning Objective | Resource | Rank | Resource Type | Rate this Resource ( )Why? |

Special Triangles (45-45-90 and 30-60-90) | http://youtu.be/nVTtSE5nv7c | video | Rate this resource | |

Special Triangles (45-45-90 and 30-60-90) | http://www.khanacademy.org/video/45-45-90-triangles?playlist=Geometry | video | Rate this resource | |

Special Triangles (45-45-90 and 30-60-90) | http://www.khanacademy.org/video/30-60-90-triangles-ii?playlist=Geometry | video | Rate this resource | |

Special Triangles (45-45-90 and 30-60-90) | http://youtu.be/b6MsSkXYQo4 | video | Rate this resource | |

Special Triangles (45-45-90 and 30-60-90) | http://www.khanacademy.org/video/intro-to-30-60-90-triangles?playlist=Geometry | video | Rate this resource |