# 3 tan x

Input |
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3 tan(x) |

Alternate form assuming x is real |

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

Roots |

x = pi n, n element Z |

Series expansion at x=0 |

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

Derivative |

d/dx(3 tan(x)) = 3 sec^2(x) |

Indefinite integral |

integral 3 tan(x) dx = -3 log(cos(x)) + constant |