Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

Normal Size Small Size show me how

Normal Size Small Size show me how

# Trig Facts

### Trigonometry facts to memorize for first term Calculus

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

csc(x) | 1/sin(x) |

sec(x) | 1/cos(x) |

cot(x) | 1/tan(x) |

1/sin(x) | csc(x) |

1/cos(x) | sec(x) |

1/tan(x) | cot(x) |

y=sin(x) crosses the x-axis where? | 0, π and 2π |

y=cos(x) crosses the x-axis where? | π/2 and 3π/2 |

y=tan(x) crosses the x-axis where? | 0 |

tan(x) | sin(x)/cos(x) |

sin(x)/cos(x) | tan(x) |

cot(x) | cos(x)/sin(x) |

cos(x)/sin(x) | cot(x) |

1 | cos²(x) + sin²(x) |

1 + tan²(x) | sec²(x) |

sec²(x) | 1 + tan²(x) |

cos²(x) + sin²(x) | 1 |

cot²(x) + 1 | csc²(x) |

csc²(x) | cot²(x) + 1 |

sin(A+B) | sin(A)cos(B) + cos(A)sin(B) |

cos(A+B) | cos(A)cos(B) - sin(A)sin(B) |

lim sin(x)/x as x->0 | 1 |

lim tan(x)/x as x->0 | 1 |

lim cos(x)/x as x->0 | from the right: ∞ from the left: -∞ |

lim (1-cos(x))/x as x->0 | 0 |

Created by:
cawil