求下列函数的全微分:[tex=6.071x1.357]YvJh/Kja4CqPvvnATUeNDe0e6X9SEUtWLateHAFbaNQ=[/tex]
举一反三
- 求下列函数y关于自变量x的二阶微分：[tex=4.5x1.429]kPJz3gYAhU9h1Rl7cUJtrA==[/tex]
- 求下列函数y关于自变量x的二阶微分：[tex=3.643x2.357]pSdofl5T9n1ZEvYrF0AJctqaFS6gZ74LY5MlSkGlchg=[/tex]
- 验证下列P(x,y)dx+Q(x,y)dy在全平面内是某个函数u(x,y)的全微分，并求此原函数u(x,y)：[tex=8.929x1.214]+Bv9d3kvB+awCTj+A3DPy76f9H6PKhnxrvjERsPgQUKstjkYN3M6bUOILXi9vjL2[/tex]
- 求下列函数的全微分：[tex=4.786x1.429]YY7hPHyCjyuL54nXi8CwSiiN3vuPgdF8GHHMtC7b4M0=[/tex]
- 求下列函数的全微分：[tex=7.357x1.571]zU4xeCD33Ro5+mWZ3rGeLXVFF6pw0hNQcujVJ6GoR0FgsoG0QXV6EA52JeklwTod[/tex]