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  • File:Ceva1.PNG
    ...ines BC, CA, AB, respectively. Lines AD, BE, CF are concurrent if and only if
    (344 × 186 (6 KB)) - 20:16, 7 March 2014
  • File:Man-hinh-led-4.jpg
    ..., with clear views, not obscured by obstructions. This type of advertising only needs a billboard and a bracket to mount on the side of the building, witho ...ing on television, newspaper ads, or internet advertising, your ads appear only at a certain frequency, but they are extremely expensive. . While with outd
    (500 × 350 (113 KB)) - 02:48, 11 March 2020
  • File:17IMG 20221113 140112.jpg
    Using the AM-GM inequality, q+r/2 = sqrt(qr) if and only if q = r, which is shown.
    (1,254 × 1,672 (139 KB)) - 10:04, 13 November 2022