• 2022-06-29
    设[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]具有二阶导数,求函数的二阶导数:[tex=4.786x1.286]vMQwuUk+cbghP23ufnHG0ajDMpkCOePCC3AUcyxRks0=[/tex]。
  • 解:[tex=11.5x1.286]t/7A1cGhd8ivuKOfG3SJ7TKH7XdLgSpTyXR7KlvTuNo65I1XHwasi3EGw8CbedJMW464eHgu2fEL4oisSNgsKFGn4W2Iq5lTIP744/MNKzQ2FP8pCmFHR21V4UOSWo3Q[/tex][tex=18.071x1.286]dXTgVoMbWVQzVC2ZBUc9JVyMmrGOXHlDwVwnbkf7hVSL/963UDBUamIG/KJSmQQVAHblhTFZP/LFlP4+KwW3uqCw3YePWGNAM2C7IR6gptF3WiDeO0Iw8+8oCDUHfmHPlE5aHPWKrKR9i843VJh5SHwGmftv1xUafr1kMldltrVzebjdZJfdaKVO2r4rEEqG[/tex],于是[tex=13.714x1.286]Ei2PZQl92La73hUrygebc6FFunZNpFTTpgPrlr4Gddr60Jeoyc5ThJ+dn1YfecrNPdrzp5ZHorK7npP3f4v9mwQPLdsqJwvmb+Bnk4V7JlVhlOIrj5QtlKB0XWPFPVWk/AX2JAMN24pcmT7Qs/jq+EQfISlz9+hLB/V6uztTfrM=[/tex][tex=13.286x1.286]qzY/z8rgmua43AHlPCCw909pzOiFZY6CcHAnyWsySZFJWKsfKofS0TKX/tXLtUygaHEiZTpbAgqRchC7L+BE8J9ae+gKPIrX2l1wVqOUlYP7fUBR75OIuL249eIXIvyrpRunyz9UwZeIM4jqUta5uvb9trNBr6pPilBRQNQyez/XuqAb8fJypJegv4a2t4SE[/tex][tex=13.643x1.286]ccnMQXS39jBPKnd2Vxv19SUf7zCjaOvIj2e29VxrIqPsgNfCN+jNYplqgVZ5qLX9g/2jtxihGV3vI0XfIVMyBB09Jka5YIxiCE8EQRmCJTSE0+bh0bIT8fLL1i++jvp+[/tex]。

    举一反三

    内容

    • 0

      设[tex=0.5x1.214]0K9Xf7VHWdVeOrSYAKIm6Q==[/tex]为二阶可导函数,求下列各函数的二阶导数(3)[tex=4.429x1.357]mvl979BX4QNK3qiLeHBL2w==[/tex]

    • 1

      设函数[tex=3.571x1.286]VhM8EK25rb5AWmEItkNOoQ==[/tex],[tex=3.714x1.286]ILxTGSNsFVqbb4UrB1q2og==[/tex]都存在二阶导数,求复合函数[tex=4.714x1.286]RRs92pK5qkohrd+7xlMNhw==[/tex] 的二阶导数。

    • 2

      设 [tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex] 为有二阶连续导数的偶函数, 且 [tex=4.143x1.286]YRReUQzIsdcIgxj5peM19AlFsoF7N1iUYqD7NPZ8gkOyRhnc4Bfma30hFEE4ZOco[/tex]。 证明[tex=2.357x1.286]F20DA9b5PZyvxJH27l4LOQ==[/tex] 是 [tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex] 的极值点。

    • 3

      设函数 [tex=0.5x1.214]gNOHIx2AGu3qP//Yn7oxrg==[/tex]具有连续的二阶导数或二阶偏导数,求复合函数的指定的偏导数:[tex=10.357x2.714]gwdbS+1MJKky8fYwHYEFbzdBjfjaaQKp+/HaEd1goXpX1IL/+CFKOMTlGhe1X1suSHVgVKtMx2AWu8vOSxtg2fmSEy4VJfddQ1i3CBdV4AaeKYHZOpDQsupE6HyI2JRi1q8NULSbhksXVuc+1CiVAQ==[/tex]

    • 4

      求下列复合函数的指定阶的偏导数,其中 [tex=0.643x1.286]+RQz+inOZSqc5WvKyEpD0Q==[/tex] 具有二阶连续偏导数:[tex=10.5x2.714]5uz5YpWFwhy+b0+HSpWfKiIZCcQNfMD4PTUShUtDzrn2Si07CSq/7OPBX8nGWF6dT3R9uibVjC0UmtU1e57X+/3Hri/crZemFV3if5OWtVHADBilVp/lKsW+BwHMYFtCAnHCQdKWZRVeaVI41oVEY5LOAT6EGPqR44kUXkSXhzA=[/tex].