Question

Помогите пожалуйста...... ;((((((

Answer 1

$ttdisplaystyle 1)~y=12-x^2 + x^3 - x^5 + x^3 + sqrt{x} + frac{1}{x}\\\y' = 0 - 2x + 2x^2 - 5x^4 + 3x^2 + frac{1}{2sqrt{x}}-frac{1}{x^2}\\\\2)~y = 13 - 6x^2 + 7x^3 - 6x^4 - 5x^9 + 18sqrt{x} - frac{1}{x^5}\\\y' = 0 - 12x + 21x^2 - 24x^3 - 45x^8 + frac{9}{sqrt{x}}+frac{5}{x^6}\\\\3)~y = 4cosx - 5sinx - 2tgx + 9ctgx\\\y' =-4sinx -5cosx-frac{2}{cos^2x}-frac{9}{sin^2x}$

Answer 2

Спасибо :3