Question

найдите производную функции y=ctg(pi/6-4x)

Answer 1

y=ctg(π/6-4x)

$y'=- \frac{1}{sin^{2}( \frac{ \pi }{6}-4x) } *( \frac{ \pi }{6}-4x)'=- \frac{-4}{sin^{2}( \frac{ \pi }{6}-4x) } = \frac{4}{sin^{2}( \frac{ \pi }{6}-4x) }$