Discuss the extremum of `f(x)={x^2+x^-2}

Discuss the extremum of f(x)=2x^3-3x^2-12 x+5 for x in [-2,4] and the find the range of f(x) for the given interval.

Discuss the extremum of f(x)=x(x^2-4)^(-1/3)

Discuss the extremum of f(x)=2x+3x^(2/3)

Discuss the extremum of f(x)=2x+3x^(2/3)

Discuss the extremum of f(x)=40(3x^4 + 8x^3-18 x^2+60)dot

Discuss the extremum of f(x)={1+sinx ,x<0x^2-x+1,xgeq0a tx=0

Discuss the extremum of f(x)=1/3(x+1/x)

Discuss the extremum of f(x)=sinx+1/2sin2x+1/3sin3x ,0lt=xlt=pidot

Discuss the extremum of f(x)=1+2sinx+3 cos^2x ,xlt=xlt=(2pi)/3

Discuss the extremum of f(x)=sinx(1+cosx),x in (0,pi/2)