6.设[tex=4.357x1.357]WQ+BwqXgn09wawLe9/F3lhKlbx/O9rIAhnoKfZbyOZw=[/tex]([tex=1.357x1.143]cN+ghktPottiVSy1l5Sn4w==[/tex]表示全体正实数的集合),证明:[tex=12.143x2.214]C1o9w1iikbG1Vh+Ga6kj8LCdaHU66wsHOzh2yY98DIML/5NZRnl/a1b+aD30HI65VHlAyu6mAzW1PbOP/kiKjqfoLTjEBZ4mxZ7Dw/aBnTY=[/tex]你能说明此不等式的几何意义吗?
6.设[tex=4.357x1.357]WQ+BwqXgn09wawLe9/F3lhKlbx/O9rIAhnoKfZbyOZw=[/tex]([tex=1.357x1.143]cN+ghktPottiVSy1l5Sn4w==[/tex]表示全体正实数的集合),证明:[tex=12.143x2.214]C1o9w1iikbG1Vh+Ga6kj8LCdaHU66wsHOzh2yY98DIML/5NZRnl/a1b+aD30HI65VHlAyu6mAzW1PbOP/kiKjqfoLTjEBZ4mxZ7Dw/aBnTY=[/tex]你能说明此不等式的几何意义吗?
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