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{"id":30170,"date":"2018-05-13T13:54:12","date_gmt":"2018-05-13T06:54:12","guid":{"rendered":"https:\/\/lop12.edu.vn\/?p=30170"},"modified":"2018-05-13T13:55:00","modified_gmt":"2018-05-13T06:55:00","slug":"hinh-hoc-chuong-1-bai-1-vecto-trong-khong-gian","status":"publish","type":"post","link":"https:\/\/lop12.edu.vn\/hinh-hoc-chuong-1-bai-1-vecto-trong-khong-gian\/","title":{"rendered":"H\u00ecnh H\u1ecdc – Ch\u01b0\u01a1ng 3 – B\u00e0i 1 : Vect\u01a1 trong kh\u00f4ng gian"},"content":{"rendered":"

B\u00e0i 1 (trang 91 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh l\u0103ng tr\u1ee5 t\u1ee9 gi\u00e1c ABCD.A‘<\/sup>B‘<\/sup>C‘<\/sup>D‘<\/sup>. M\u1eb7t ph\u1eb3ng (P) c\u1eaft c\u00e1c c\u1ea1nh b\u00ean AA‘<\/sup>, BB‘<\/sup>, CC‘<\/sup>, DD‘<\/sup>\u00a0l\u1ea7n l\u01b0\u1ee3t taih I, K, L, M. X\u00e9t c\u00e1c vect\u01a1 c\u00f3 c\u00e1c \u0111i\u1ec3m \u0111\u1ea7u l\u00e0 c\u00e1c \u0111i\u1ec3m I, K, L, M v\u00e0 c\u00f3 c\u00e1c \u0111i\u1ec3m cu\u1ed1i l\u00e0 c\u00e1c \u0111\u1ec9nh c\u1ee7a h\u00ecnh l\u0103ng tr\u1ee5. H\u00e3y ch\u1ec9 ra c\u00e1c vect\u01a1:<\/p>\n

\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
B\u00e0i 2 (trang 91 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh h\u1ed9p ch\u1eef nh\u1eadt ABCD.A‘<\/sup>B‘<\/sup>C‘<\/sup>D‘<\/sup>. Ch\u1ee9ng minh r\u1eb1ng:<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
B\u00e0i 3 (trang 91 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh b\u00ecnh h\u00e0nh ABCD. G\u1ecdi S l\u00e0 m\u1ed9t \u0111i\u1ec3m n\u1eb1m ngo\u00e0i m\u1eb7t ph\u1eb3ng (ABCD).<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
B\u00e0i 4 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh t\u1ee9 di\u1ec7n ABCD. G\u1ecdi M v\u00e0 N l\u1ea7n l\u01b0\u1ee3t l\u00e0 c\u00e1c trung \u0111i\u1ec3m c\u1ee7a AB v\u00e0 CD.<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
B\u00e0i 5 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh t\u1ee9 di\u1ec7n ABCD. H\u00e3y x\u00e1c \u0111\u1ecbnh hai \u0111i\u1ec3m E, F sao cho :<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\" \"\"<\/div>\n
B\u00e0i 6 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho t\u1ee9 di\u1ec7n ABCD. G\u1ecdi G l\u00e0 tr\u1ecdng t\u00e2m c\u1ee7a tam gi\u00e1c ABC.<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
B\u00e0i 7 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0G\u1ecdi M v\u00e0 N l\u1ea7n l\u01b0\u1ee3t l\u00e0 trung \u0111i\u1ec3m c\u1ee7a c\u00e1c c\u1ea1nh AC v\u00e0 BD c\u1ee7a t\u1ee9 di\u1ec7n ABCD. G\u1ecdi I l\u00e0 trung \u0111i\u1ec3m c\u1ee7a \u0111o\u1ea1n MN v\u00e0 P l\u00e0 m\u1ed9t \u0111i\u1ec3m b\u1ea5t k\u1ef3 trong kh\u00f4ng gian. Ch\u1ee9ng minh r\u1eb1ng :<\/div>\n
\"\"<\/div>\n
L\u1eddi gi\u1ea3i<\/strong><\/div>\n
\"\"<\/div>\n
\"\"<\/div>\n
\n

B\u00e0i 8 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho h\u00ecnh l\u0103ng tr\u1ee5 tam gi\u00e1c ABC.A’B’C’ c\u00f3 …<\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

B\u00e0i 9 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b>\u00a0Cho tam gi\u00e1c ABC. L\u1ea5y m\u1ed9t \u0111i\u1ec3m S ngo\u00e0i m\u1eb7t ph\u1eb3ng (ABC). Tr\u00ean \u0111o\u1ea1n SA l\u1ea5y \u0111i\u1ec3m M sao cho …<\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n

B\u00e0i 10 (trang 92 SGK H\u00ecnh h\u1ecdc 11):<\/b><\/p>\n

\"\"<\/p>\n

L\u1eddi gi\u1ea3i<\/strong><\/p>\n

\"\"<\/p>\n

\"\"<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

B\u00e0i 1 (trang 91 SGK H\u00ecnh h\u1ecdc 11):\u00a0Cho h\u00ecnh l\u0103ng tr\u1ee5 t\u1ee9 gi\u00e1c ABCD.A‘B‘C‘D‘. M\u1eb7t ph\u1eb3ng (P) c\u1eaft c\u00e1c c\u1ea1nh b\u00ean AA‘, BB‘, CC‘, DD‘\u00a0l\u1ea7n l\u01b0\u1ee3t taih I, K, L, M. X\u00e9t c\u00e1c vect\u01a1 c\u00f3 c\u00e1c \u0111i\u1ec3m \u0111\u1ea7u l\u00e0 c\u00e1c \u0111i\u1ec3m I, K, L, M v\u00e0 c\u00f3 c\u00e1c \u0111i\u1ec3m cu\u1ed1i l\u00e0 c\u00e1c \u0111\u1ec9nh c\u1ee7a h\u00ecnh […]<\/p>\n","protected":false},"author":3,"featured_media":30174,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_mi_skip_tracking":false,"tdm_status":"","tdm_grid_status":""},"categories":[1318],"tags":[1464,1463],"yoast_head":"\nH\u00ecnh H\u1ecdc - Ch\u01b0\u01a1ng 3 - B\u00e0i 1 : Vect\u01a1 trong kh\u00f4ng gian<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lop12.edu.vn\/hinh-hoc-chuong-1-bai-1-vecto-trong-khong-gian\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"H\u00ecnh H\u1ecdc - Ch\u01b0\u01a1ng 3 - B\u00e0i 1 : Vect\u01a1 trong kh\u00f4ng gian\" \/>\n<meta property=\"og:description\" content=\"B\u00e0i 1 (trang 91 SGK H\u00ecnh h\u1ecdc 11):\u00a0Cho h\u00ecnh l\u0103ng tr\u1ee5 t\u1ee9 gi\u00e1c ABCD.A‘B‘C‘D‘. M\u1eb7t ph\u1eb3ng (P) c\u1eaft c\u00e1c c\u1ea1nh b\u00ean AA‘, BB‘, CC‘, DD‘\u00a0l\u1ea7n l\u01b0\u1ee3t taih I, K, L, M. 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