Draw the graph of the equation (1) y = x³ - x² - x + 1.
Use the graph to locate the roots of the equation (2) x³ - x² - x + 1 = 0.
Check by solving the equation algebraically.
Draw the graph of the equation (1) y = x³ - x² - x + 1.
Use the graph to locate the roots of the equation (2) x³ - x² - x + 1 = 0.
Check by solving the equation algebraically.
暂无答案
函数f(x)=1/x (x≠0)的反函数f-1 (x)=【 】
若函数y=f(x)的反函数是y=g(x),f(a)=b,ab≠0,则g(b)等于【 】
已知f(x)=2x+b的反函数为f-1(x),若y=f-1(x)的图像经过点Q(5,2),则b=______.
设函数y=f(x)是最小正周期为2的偶函数,它在区间[0,1]上的图像为如图所示的线段AB,则在区间[1,2]上,f(x)=__________.
已知函数f(x)=x3(a∙2x - 2-x)是偶函数,则a=__________.
已知函数f(x)=x(1-lnx).(1)讨论f(x)的单调性;(2)设a,b为两个不相等的正数,且blna-alnb=a-b,证明:2<1/a+1/b<e.