• 2022-05-30
    设[tex=1.857x1.357]bZ4KhrFbnCaidqbMGQZfww==[/tex]具有二阶连续导数,且[tex=3.643x1.357]trWzXE2Y41pdKtnPLMtSnQ==[/tex], 试证:[tex=10.643x4.357]PhL/cv4k8jAjyF+v4yjHJNpjGPiWgAcN2FFZnZdXw75MyB7j/DIVLs7klyNk+VZBSp4h/9W3SJ5G0qSRv5iy9nSvQlkKF3Roo6dA1pz/wlSWD280MqIBMuGYLMncgh9/3Be1BtFvIV/9iPROqBg7zw==[/tex]可导,且导函数连续.