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# CC1 Memorization

### Algebra 2

Question | Answer |
---|---|

What is the relationship between degrees and radians? | 180 = pie |

sides for a 30 - 60 - 90 triangle? | s, 2s, s√3 |

sides for a 45 - 45 - 90 triangle? | s, s, s√2 |

ratio for sin θ | opposite/hypotenuse |

ratio for cos θ | adjacent/hypotenuse |

ratio for tan θ | opposite/adjacent |

ratio for csc θ | hypotenuse/opposite |

ratio for sec θ | hypotenuse/adjacent |

ratio for cot θ | adjacent/opposite |

how are sin and csc related? | sin θ = 1/csc θ or csc θ 1/sin θ |

how are cos and sec related? | cos θ = 1/sec θ or sec θ = 1/cos θ |

how are tan and cot related? | tan θ = sin θ/cos θ or cot = cos θ/sin θ |

what are the three Pythagorean trig identities? | sin^2 θ + cos^2 θ = 1 1 + cot^2 θ = csc^2 θ tan ^2 θ + 1 = sec^2 θ |

values of sin for unit circle? | 0,1,0,-1,0 |

values of cos for unit circle? | 1,0,-1,0,1 |

what is the vertical translation? | it shifts the graph up or down |

how to find the amplitude? | absolute value of a |

how do you find the period for sin and cos? | 2𝜫/b |

what is the formula for sine and cosine equations? | y = a trig (bθ) + c |

c =? | midline |

a =? | amplitude |

b =? | frequency and period |