Identify which of the twelve basic functions listed below fit the description given. x=y, y=x^2, y=x^3, y=[x], y=1/x, y=e^x, y=sqrt x, y=la x, y=sin x, y= cos x, y =int (x), y=1/1+e^-x Two functions that are bounded above and below. a. y=sqrt x, y=1/1+e^-x
b. y=sin x, y=cos x
c. y=e^x, y=ln x
d. y=sqrt x, y=ln x