Question

найти производную
даю 20 за скорость))​

Answer 1

$y {}^{'} = ( frac{ cos(5x) }{ {x}^{2} } ) {}^{'} = frac{ {x}^{2} times ( cos(5x) ) {}^{'} - cos(5x) times 2x}{ {x}^{4} } = frac{ - 5{x}^{2} times sin(5x) - 2x cos(5x) }{ {x}^{4} }$