Найти критические точки функции: f(x)=3x^3-4,5x^2+2x-1
F`(x)=9x²-9x+2=0 D=81-72=9 x1=(9-3)/18=1/3 x2=(9+3)/18=2/3 + _ + ----------(1/3)----------(2/3)-------------- max min y(1/3)=3*1/27-4,5*1/9+2*1/3-1=1/9-1/2+2/3-1=-13/8 y(2/3)=3*8/27-4,5*4/9+2*2/3-1=8/9-2+4/3-1=-7/9
А ответ можно ?