Question

найдите производную функции y=5x^2*cosx

Answer 1

$5x {}^{2} \times \cos(x) + 5x {}^{2} \times \cos(x) \\ 5 \times 2x \times \cos(x) + 5x {}^{2} \times ( - \sin(x) ) \\ 10x \times \cos(x) - 5x {}^{2} \times \sin(x)$