the minimum value of y=x^3-x on the interval (0,1)

the minimum value of y=x^3-x on the interval (0,1) Find the minimum value of A=x^2 + y^2 if x + y =10 Find the minimum value of the function f(x,y)=8x^2+6y^2+20xy On what interval is the curve y = x ln(x - 1) concave upward what is the average(mean) value of 2t-3t+4 over interval -1≤ 英语翻译The value of y will decrease as the value of x increases 求简便算法If x2 - 3x + 1 = 0, what is the value of x2 + (1/x)2 ? For what value of A is the plane 2x-2y+z=3 is tangent to the given that f(x)=2x-3,find the value of f(x+h). .What is the minimum value of the sum of a positive real num given the sum of two number is 20,find the minimum value of given that x=(Sin(2/5))^(-1),find the exact value of 1.(Cosx