Question

Вычислите производную функции y=(x^2-3x)cosx

Answer 1

${y}^{l} = ( {x}^{2} - 3x) {}^{l} \cos(x ) + ( {x}^{2} - 3x)( \cos(x)) {}^{l} = \\ (2x - 3) \cos(x) - ( {x}^{2} - 3x) \sin(x)$