MathematicsEasy175×since 2002Q2621The function f(x)=x2+2xf\left( x \right) = {x \over 2} + {2 \over x}f(x)=2x+x2 has a local minimum atAx=2x=2x=2Bx=−2x=-2x=−2Cx=0x=0x=0Dx=1x=1x=1Check answerSkip