• 2022-06-15
    设 [tex=2.429x1.429]79SmwT+8J9VTqKDgDEyFqyq/RV3jccSxj4F/gfqSdMY=[/tex]存在,求下列函数 [tex=0.5x1.0]yBR4oiFoTexGaFalQ7m8kg==[/tex]的二阶导数 [tex=1.786x2.571]eHmJ6WkcVxLNZ4Gfz3qUfm6er5h8xfY09ubZn/4hginoK6OMR4RaDKVmJkkGC3Na[/tex] :[tex=5.0x1.357]FJnmnaeuPtVDjMOB+OXTZ7at58LJr5YwZebnz+UqrDg=[/tex]