Question

求函数的极值（求解题过程）第一题：y =x^3-2x^2+x-5第二题：y=(1-5)√x^2在[0,1]上 (那个。把

Answer 1

y'=3x²-4x+1=0

x=1/3,x=1

x1,y'>0,递增

1/3