# 9x-7i 3(3x-7u)

Input |
---|

9 x – (7 i) (3 (3 x – 7 u)) |

Result |

9 x – 21 i (3 x – 7 u) |

Alternate form assuming u and x are real |

9 x + i (147 u – 63 x) |

Root |

x = (343/150 – (49 i)/150) u |

Property as a function |

odd |

Root for the variable u |

u = (3/7 + (3 i)/49) x |

Derivative |

(d)/(dx)(9 x – (7 i) (3 (3 x – 7 u))) = 9 – 63 i |

Indefinite integral |

integral (9 x – (7 i) (3 (3 x – 7 u))) dx = 147 i u x + (9/2 – (63 i)/2) x^2 + constant |

Definite integral over a disk of radius R |

integral integral_(u^2 + x^2 |