# 1 tanx 1 tanx

Input |
---|

tan(x)×1 tan(x) |

Result |

tan^2(x) |

Alternate form assuming x is real |

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

Roots |

x = pi n, n element Z |

Series expansion at x=0 |

x^2 + (2 x^4)/3 + (17 x^6)/45 + (62 x^8)/315 + O(x^9) (Taylor series) |

Derivative |

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

Indefinite integral |

integral tan^2(x) dx = tan(x) – x + constant |