设函数f(x)在点x0处具有二阶导数且f&39;(x0)=0,那末当f"(x0)<0时()
2022-01-06
曲线y=x^4()
2022-01-06
曲线y=x^3+3的拐点个数为_________.
2022-01-06
设矩阵A为三阶方阵,且AA&39;=E,则| A |=()
2022-01-06
抛物线y=x^2上(1,1)点处的切线方程为()
2022-01-06
当x→0时,x ln(x+1)是()
2022-01-06
函数y=loga(x^2-4)(a是常数且a>0,a≠1)的定义域是()
2022-01-06
设y=xln x,则dy=__________dx.
2022-01-06
设f(x,y)=x^3+2y^3,则对任何x,y均有f(-x,-y)=()
2022-01-06
单叶双曲面x^2+y^2-z^2=1与平面x=2的截线是()
2022-01-06