# 2tanx

Input |
---|

2 tan(x) |

Alternate form assuming x is real |

(2 sin(2 x))/(cos(2 x) + 1) |

Roots |

x = pi n, n element Z |

Series expansion at x=0 |

2 x + (2 x^3)/3 + (4 x^5)/15 + O(x^6) (Taylor series) |

Derivative |

d/dx(2 tan(x)) = 2 sec^2(x) |

Indefinite integral |

integral 2 tan(x) dx = -2 log(cos(x)) + constant |