# Dy/dx of xy

Derivative |
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(d)/(dx)(x y) = y |

Indefinite integral |

integral y dx = x y + constant |

Definite integral over a disk of radius R |

integral integral_(x^2 + y^2 |

Definite integral over a square of edge length 2 L |

integral_(-L)^L integral_(-L)^L y dy dx = 0 |