• 2022-07-23
    设[tex=1.857x1.286]G6WxJ307HB2e1l7Qz3uNbQ==[/tex]在[tex=1.929x1.286]vPlUmwL8t1REs9r1XOy2kg==[/tex]上可微,且[tex=4.214x1.286]cM9+68aDH9w9rd1A9Ckb6mN58T/O2QEr2wNy6RHvYv4=[/tex],[tex=4.143x1.286]LigwaoScOaIzMcYnxLOdp/yFpa7AafuUPG+OD56wvgY=[/tex],[tex=6.929x1.286]utO9dO+6K3ibzHA0jNEBHpD62supp2hwkbvP5jr2JWA=[/tex],试证明[tex=2.143x1.286]FKq9v1pXcOtjy1Cl2h+pXv4qvrtr57gpoaVePO4m860=[/tex]在[tex=2.071x1.286]Q9EbYIIWqK0gqhJcCkS6lw==[/tex]内至少有两个零点。