Question

решите производную пж
f(x) =ln(1/x)​

Answer 1

$f(x) = ln( frac{1}{x} ) \ \ f'(x) = frac{1}{ frac{1}{x} } times ( - frac{1}{x ^{2} } ) = - x times frac{1}{x ^{2} } = - frac{1}{x} \ \ OTBET: - frac{1}{x}$