• 2022-05-31
    验证下列 [tex=9.0x1.357]KHYl3O4wgiPzNAlhzNxzCuAEYDdp1CBW7ut5a9Gx98SeUALdYd3ng11opiub7RYa[/tex] 在整个 [tex=1.857x1.214]8v+QaGH4dkCVbzRhgAvkuw==[/tex] 平面内是某一函数 [tex=2.857x1.357]5qODqd/qaxuX0gsrn/6whQ==[/tex] 的全微分,并求这样一个 [tex=20.0x1.357]L7G/5UFqFCKpwDB4VSnOKSlAxLOVPG+/vSEor1TyQKc1eneGw9PGUXo8gt+Ilj+WR7scCgaGbiqwkUwjcCAez7ljKdrdDsPQM8SGoqBwA5okcuzbg3PHjbicPQVy1R5W[/tex]
  • 举一反三