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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ 2019 ᠣᠨ ᠤ ᠤᠯᠠᠭᠠᠨ ᠬᠠᠳᠠ ᠬᠤᠲᠠ ᠶ ᠢᠨ ᠠᠩᠬ ᠠ ᠳᠤᠮᠳ ᠠᠳᠤ ᠶ ᠢᠨ ᠰᠤᠷ ᠤᠭᠴᠢ ᠳ ᠤᠨ ᠰᠤᠷ ᠤᠯᠭ ᠠ ᠲᠡᠭᠦᠰ ᠬᠦ᠂ ᠰᠤᠷ ᠭᠠᠭᠤ ᠯᠢ ᠳᠠᠪᠰᠢᠬᠤ ᠨᠢᠭᠡᠲᠦ ᠯᠲᠠᠢ ᠰᠢᠯᠭ ᠠᠯᠲᠠ ᠶᠢᠨ ᠰ ᠡᠳᠦᠪ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠳᠦᠪ ︵ ᠰ ᠡᠳᠦᠪ ᠪ ᠦᠷᠢ3 ᠬᠤᠪᠢ᠂ ᠨᠡᠢᠲᠡ 42 ᠬᠤᠪᠢ ︶ 1− 4 , − √2 , 0 , 4 ᠭᠡᠬᠦ ᠳᠦᠷ ᠪᠡᠨ ᠲᠤᠭ ᠠᠨ ᠳᠠᠬ ᠢ᠂ ᠬᠠᠮᠤᠭ ᠤᠨ ᠪᠠᠭ ᠠ ᠲᠣᠭ ᠠ ᠨᠢ A 4 B 0 C − √2 D\s− 4
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-05-05
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 8
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ 20 18 ᠤᠨ ᠤ ᠤᠯ ᠠᠭᠠᠨᠬ ᠠᠳᠠ ᠬᠤᠳᠠ ᠶ ᠢᠨ ᠠ ᠡᠭᠬ ᠠ ᠲᠤᠮᠳ ᠡᠳᠤ ᠶᠢᠨ ᠰᠤᠷᠤᠭᠴᠢ ᠳ ᠤᠨ ᠰᠤᠷᠤᠯ ᠭ ᠠ ᠲᠡᠬᠦ ᠰᠬᠦ᠂ ᠰᠤᠷ ᠭᠠᠭᠤᠯ ᠢ ᠲᠠ ᠪᠰᠢᠬ ᠤ ᠨᠢᠭᠡᠳᠤᠯ ᠳᠡᠢ ᠰᠢᠯᠭ ᠠᠯᠳᠠ ᠶᠢᠨ ᠰᠡᠳᠤᠪ ᠲᠤᠭ ᠠᠨ ᠤ ᠤᠬᠠᠭᠠᠨ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠲᠤᠪ ᠃\sᠰ ᠡᠲᠤᠪ ᠪᠦᠷᠢ 3 ᠬ ᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 36 ᠬᠤ ᠪᠢ\s1 20 18 ᠶᠢᠨ ᠡᠰᠡᠷ ᠬᠦ ᠲᠤᠭ ᠠ ᠨᠢ\s A − 20 18 B 12018 C 20 18 D − 12018
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-05-05
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 7
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ 2019 ᠣᠨ ᠤ ᠲᠦ ᠩᠯᠢᠶ ᠣᠤ ᠬᠤᠳ ᠠ ᠶᠢᠨ ᠠᠩᠬ ᠠ ᠲᠣᠮᠳ ᠠᠳᠤ ᠶ ᠢᠨ ᠰ ᠤᠷᠤᠭ ᠴᠢ ᠶᠢᠨ ᠰᠤᠷ ᠭᠠᠭᠤ ᠯᠢ ᠲᠠᠪᠰᠢᠬᠤ ᠰᠢᠯᠭ ᠠᠯᠲᠠ ᠲᠣᠭᠠᠨ ᠤ ᠤᠬᠠᠭᠠᠨ ᠨᠢᠭᠡ᠂ ᠰᠣᠩᠭᠤᠬ ᠤ ᠰᠡ ᠳᠤᠪ ᠃\sᠪᠠᠭ ᠠ ᠰ ᠡᠳᠤᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠳᠠ 30 ᠬᠤᠪᠢ\s1 − 12019 ᠶᠢᠨ ᠡᠰᠡᠷ ᠬᠦ ᠲᠣᠭ ᠠ ᠨᠢ\s A 20 19 B − 12019 C − 2019 D 12019 2 √16 ᠶᠢᠨ ᠺᠦᠸ ᠠᠳ᠋ ᠢ ᠵᠠᠭᠤᠷ ᠨᠢ\s A
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-05-04
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 8
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢ ᠶᠢ ᠰᠤᠳᠤᠭ ᠡᠷ ᠪᠥᠯ ᠥᠭ ᠦᠨ ᠪ ᠠᠢᠴ ᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠲᠤᠪ ᠃ ︵ ᠰᠡᠲᠤᠪ ᠪᠦ ᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ ︶ 1 ᠨᠢᠭᠡ ᠨ ᠭᠧᠣᠮᠧᠲ᠋ᠷ ᠢ ᠢ ᠢᠨ ᠪᠡᠶ ᠡ ᠢᠢᠨ ᠭᠤᠷᠪ ᠠᠨ ᠬᠠᠷᠠᠭ ᠠᠨ ᠵᠢᠷᠤᠭ ᠨᠢ ᠵᠢᠷᠤ ᠭ 1 ᠮᠡᠳᠤ ᠂ ᠲᠡ ᠭᠡᠪᠠᠯ ᠡᠨᠡ ᠭᠧᠣᠮᠧᠲ᠋ᠷ ᠢ ᠢᠢ ᠨ ᠪ ᠡᠶ ᠡ ᠨᠢ\s A ᠪᠦᠭᠡᠷᠡ ᠩᠬᠡᠢ ᠪᠠ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠤᠷᠢ ᠨ ᠶᠢ ᠰᠦᠳᠦᠭᠡ ᠷ ᠪᠥᠯ ᠥᠭ ᠦᠨ ᠪᠠᠢ ᠴᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄\s9 0 ᠮᠢ ᠨᠦ᠋ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬᠤᠪ ᠢ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠲᠤᠪ ᠃ ︵ ᠰᠡᠲᠤᠪ ᠪᠦ ᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ ︶ 1 ᠢᠵᠢ ᠯᠢ ᠨᠢ ᠭᠡᠨ ᠴᠠᠭ ᠮᠦ᠋ ᠴᠠ ᠢᠢᠨ ᠨᠠᠷ ᠠᠠ ᠤ ᠭᠡᠷᠡᠯ ᠲᠤᠤᠷ ᠠ ᠂ ᠪᠠᠲᠤ ᠢᠢᠨ ᠰᠡᠬ ᠦᠳᠡᠷ ᠨᠢ ᠪ ᠠᠭᠠᠳᠤᠷ ᠦᠨ ᠰᠡᠬᠦᠳᠡ ᠷ ᠡᠴᠠ ᠤᠷᠳᠤ ᠪᠣᠯ ᠂ ᠢ ᠵᠢᠯᠢ ᠨᠢᠭᠡᠨ ᠵᠠᠮ ᠦᠨ ᠳ᠋ ᠧᠩ ᠦ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 5
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠵᠢᠷᠭᠤᠳᠤ ᠭᠠᠷ ᠪᠥᠯᠥ ᠭ ᠦᠨ ᠨᠢᠭᠡ ᠴᠢ ᠶᠢ ᠨ ᠪᠠᠢ ᠴᠠᠭᠠᠯᠲ ᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠄ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠲᠤᠪ ᠃\sᠰᠡᠳᠦᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠡᠢᠳᠡ 30 ᠬᠤᠪᠢ ) 1 ᠨᠢᠭᠡᠨ ᠦᠢ ᠯᠡᠳᠪᠦᠷᠢ ᠳ᠋ᠤ 10 0 ᠲ ᠣᠨ ᠲᠦ᠋ ᠭᠦᠬᠡᠢ ᠮᠠᠲ᠋ᠧᠷ ᠢᠶᠠᠯ ᠪᠠᠢᠨ ᠠ᠂ ᠡᠳᠦᠷ ᠪᠦᠷᠢ 𝒙 ᠲᠣᠨ ᠬᠡᠷᠡᠭᠯᠡᠪ ᠡᠯ Y ᠡᠳᠦᠷ ᠵᠠᠷᠤᠵ ᠤ ᠬᠦ ᠷᠤᠨ ᠠ᠂ ᠲᠡᠭᠡᠪ ᠡᠯ 𝑦
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠵᠢᠷᠭᠤᠳᠤ ᠭᠠᠷ ᠪᠥᠯᠥ ᠭ ᠦᠨ ᠨᠢᠭᠡ ᠴᠢ ᠶᠢ ᠨ ᠪᠠᠢ ᠴᠠᠭᠠᠯᠲ ᠠ 90 ᠮᠢᠨᠦ᠋ ᠲ᠂ 12 0 ᠬ ᠤᠪᠢ᠃\sᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤ ᠬᠤ ᠰᠡ ᠲᠤᠪ᠃ ᠰ ᠡᠳᠦᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠡᠢᠳᠡ 30 ᠬᠤᠪᠢ\s1 ᠴᠡᠭ A 1,\s,B (3, )ᠨᠢ ᠹᠦᠩᠺᠼ Y ᠶ ᠢᠨ ᠵᠢᠷᠤᠮᠠᠭ ᠲᠡᠭᠡᠷ ᠠ ᠣᠷᠤᠰ ᠢᠨ ᠠ᠃ ᠲᠡᠭᠡᠪ ᠡᠯ , ᠶ ᠢᠨ ᠶᠡ ᠬᠡ ᠪ ᠠᠭ ᠠ ᠶᠢᠨ ᠬᠣᠯ ᠪᠤᠭᠳᠠᠯ ᠨᠢ\s A B\sC D ᠲᠤᠭᠳᠠ ᠭᠠᠬᠤ ᠠ ᠷᠭ ᠠ ᠦᠭᠡ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 6
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠤᠷᠢ ᠨ ᠳ ᠣᠯᠣᠳᠤᠭᠠᠷ ᠪᠥ ᠯᠥᠭ ᠦᠨ ᠪᠠᠢ ᠴᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰᠡ ᠲᠤᠪ ᠃\sᠰ ᠡᠲᠤᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ\s1 ᠬᠠᠷᠢᠴᠠᠯ ᠲᠤ ᡂᠢ ᠨᠢ 1 50 00 0 ᠪᠤᠯᠬ ᠤ ᠭᠠ ᠵᠠᠷ ᠤ ᠨ ᠵᠢᠷ ᠤᠭ ᠲᠡᠭᠡᠷ ᠠ ᠠ ᠂ ᠡ ᠬᠤᠶ ᠠᠷ ᠭᠠᠵᠠᠷ ᠤᠨ ᠬᠤᠭᠤᠷ ᠤᠨᠳᠤᠬ ᠢ ᠵᠠ ᠢ ᠨᠢ 25 CM ᠂ ᠲᠡ ᠭᠡᠪᠡᠯ ᠠ᠂ ᠡ ᠬᠤ ᠶᠠᠷ ᠭᠠᠵᠠ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠤᠷᠢ ᠨ ᠳᠣ ᠯᠣᠳᠤᠭᠠᠷ ᠪᠥᠯ ᠥᠭ ᠦᠨ ᠪᠠᠢ ᠴᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵ 09 ᠡᠲᠢᠠ ᠨ ᠨᠦ᠋ᠨᠢᠮ 02 9 ᠢᠪᠤᠬ ︶ ᠨᠲᠭᠡ ᠰᠪᠩᠭᠪᠬ ᠤ ᠰᠡ ᠢᠪᠪ ᠃ ᠰᠡᠢᠪ ᠪ ᠪᠦᠷᠢ 4 ᠢ ᠪᠤᠬ ᠨᠦ᠋ᠨᠢᠮ 28 ᠢᠪ ᠤᠬ\s1 ᠳᠪᠪᠷ ᠦ᠋ᠬᠢ ᠤᠯᠦ᠋ᠨ ᠦᠨᠴᠦᠭᠢᠦ ᠡ ᠴᠮ ᠯᠦ᠋ᠤᠢᠦ᠋ ᠢ ᠢᠦ᠋ᠷ ᠲᠯᠴᠦ᠋ᠨ ᠲᠠ ᠰᠢᠦ᠋ᠢ ᠪᠤᠯ ᠬᠤ ᠨᠢ\s A ᠢᠪᠶ ᠦ᠋ᠷ ᠳᠡ ᠭᠰᠢ ᠦᠨᠴᠦᠭᠢᠦ B ᠢᠪᠶ ᠦ᠋ᠷ ᠷᠪᠮᠪ C ᠢᠪᠶ ᠦ᠋ᠷ ᠳᠡ ᠭᠰᠢ ᠲᠠᠷᠤ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠨᠠᠢ ᠮᠠᠳᠤ ᠭᠠᠷ ᠪᠥᠯᠥ ᠭ ᠦᠨ ᠨᠢᠭᠡ ᠴᠢ ᠶᠢ ᠨ ᠪᠠᠢᠴᠠ ᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ 90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰ ᠡᠲᠤᠪ᠃ ᠰᠡ ᠲᠤᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ 1 ᠬᠡᠷᠪᠡ ᠥᠨᠴ ᠥᠭ 𝛼 ᠨᠢ ᠬᠤᠷᠴᠠ ᠥᠨ ᠴᠥᠭ ᠮᠥ ᠷᠳᠡᠭᠡ ᠨ𝑠𝑖𝑛𝛼\s45 ᠪᠣᠯ᠂ 𝑡𝑎𝑛𝛼\s︵ ︶ A 925 B 35 C 34 D 43 2 RT ∆AB C ᠳᠦ᠂ ∠C\s9
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠨᠠᠢ ᠮᠠᠳᠤ ᠭᠠᠷ ᠪᠥᠯᠥ ᠭ ᠦᠨ ᠨᠢᠭᠡ ᠴᠢ ᠶᠢ ᠨ ᠪᠠᠢᠴᠠ ᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ 90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ\sᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭᠤᠬ ᠤ ᠰ ᠡᠲᠤᠪ᠃ ᠰ ᠡᠲᠤᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ 1 ᠦᠭ᠍ ᠭᠦᠭ᠍ᠳ᠋ᠡᠭ᠍ ᠰᠡᠨ ᠨᠢ RT ∆A BC ᠳ᠋ᠥ ᠂ ∠C\s90 , AC\s6 , BC\s8 ᠲᠡᠭᠡᠪ ᠡᠯ SINA ᠵᠢᠨ ᠬᠡᠮᠵᠢ ᠭ᠍ᠳ᠋ᠡᠯ ᠨᠢ\s A 35 B 34 C
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠳᠥ ᠷᠪᠡᠳᠦᠭᠡᠷ ᠪᠥ ᠯᠥᠭ ᠦᠨ ᠪ ᠠᠢᠴ ᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵12 0 ᠮᠢ ᠨᠦ᠋ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠂ ᠰᠤ ᠩᠭᠤ ᠬᠤ ᠰ ᠡᠲᠤᠪ ᠃\sᠰᠡᠲᠤᠪ ᠪ ᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤᠪᠢ\s1 ᠲᠣᠭ ᠣᠷᠢᠭ ᠤ ᠨ ᠬᠠᠮᠤᠭ ᠤᠷᠳᠤ ᠬᠥ ᠪᠴᠢ ᠨᠢ1 2CM ᠂ ᠬᠡ ᠷᠪᠠ ᠰᠢᠯᠤᠭᠤᠨ ᠪᠣᠯ ᠤᠨ ᠲᠣᠭ ᠤᠷᠢᠭ ᠨᠢ ᠣᠭᠲᠤ ᠯᠤᠯᠴᠠ ᠬᠤ ᠮ ᠥᠷᠲᠡᠭᠡᠨ ᠲᠣᠭ ᠤᠷᠢᠭ ᠤ ᠨ ᠲᠥ ᠪ ᠡᠴᠡ ᠰᠢᠯ ᠤᠭᠤᠨ ᠬᠦᠷᠬ ᠦ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 6
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠳᠥ ᠷᠪᠡᠳᠦᠭᠡᠷ ᠪᠥᠯ ᠥᠭ ᠦᠨ ᠪᠠᠢᠴ ᠠᠭᠠᠯᠲ ᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭ ᠡ᠂ ᠰᠤᠩᠭ ᠤᠬᠤ ᠰᠡᠲᠤ ᠪ᠃ ︵ ᠰᠡ ᠲᠤᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤᠪᠢ ︶ 1 ᠵᠢᠷᠤᠭ 1 ᠮᠡᠳᠤ ᠂ ⊙ O ᠶᠢᠨ ᠳ᠋ᠢᠶᠠᠮ ᠧᠲ᠋ᠷ AB ⊥CD ᠡᠭᠴᠡ ᠶᠢᠨ ᠰᠠᠭ ᠤᠷᠢ ᠨᠢ ᠴᠡ ᠭ E ᠂ ᠳᠣᠣᠷ ᠠᠬᠢ ᠳ᠋ᠦ᠋ᠩᠨᠡ ᠯᠲᠡ ᠡᠴᠡ ᠪᠤᠷᠤᠭ ᠤ ᠪ ᠣᠯᠬᠤ ᠨ ᠢ\s A CE D E B\sA
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 6
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠲᠠᠪᠤᠳᠤ ᠭᠠᠷ ᠪᠥᠯ ᠥᠭ ᠦᠨ ᠪᠠᠢᠴ ᠠᠭᠠᠯᠲ ᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠂ ᠰᠤᠩᠭ ᠤᠬᠤ ᠰᠡᠲᠤ ᠪ᠃ ︵ ᠰᠡᠲ ᠤᠪ ᠪ ᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠᠢᠲᠡ 30 ᠬᠤ ᠪᠢ ︶ 1 ᠳᠣᠣᠷ ᠠᠬᠢ ᠡᠴᠠ ᠵᠠᠶᠢᠯᠠᠰ ᠢᠭᠦᠢ ᠶᠠᠪᠤᠳᠠ ᠯ ᠪᠣᠯ ᠬᠤ ᠨᠢ\sA ᠳᠤᠤᠷ ᠠ ᠢᠢᠨ ᠭᠤᠷᠪ ᠠᠯᠵᠢ ᠨ ᠢ ᠵᠢᠷᠤᠬ ᠤ ᠳ᠋ᠤ ᠲᠡᠭᠦᠨ ᠦ ᠳᠣᠲᠤᠭᠠ ᠳᠤ ᠦᠨᠴᠦᠭ ᠦᠨ ᠨᠡᠶᠢᠯᠡ ᠪᠦᠷᠢ ᠨᠢ 360
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 4
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ᠲᠣᠪᠴᠢᠯᠠᠯ᠄ ᠬᠣᠷ ᠢᠨ ᠲᠠᠪᠤᠳᠤ ᠭᠠᠷ ᠪᠥᠯᠥ ᠭ ᠦᠨ ᠪ ᠠᠢᠴ ᠠᠭᠠᠯᠲᠠ ᠠᠩᠭᠢ ᠪᠥᠯ ᠥᠭ᠄ ᠨᠡᠷ ᠡ᠄ ︵90 ᠮᠢᠨᠦ᠋ ᠲ᠂ ᠨᠠᠢᠲᠡ 12 0 ᠬ ᠤᠪᠢ ︶ ᠨᠢᠭᠡ᠂ ᠰᠤ ᠩᠭᠤ ᠬᠤ ᠰ ᠡᠲᠤᠪ ᠃ ᠰᠡᠲᠤ ᠪ ᠪᠦᠷᠢ 3 ᠬᠤᠪᠢ᠂ ᠨᠠ ᠢᠲᠡ 30 ᠬᠤᠪ ᠢ 1 ᠪᠠᠭᠰᠢ ᠨᠢᠭᠡ ᠠᠩᠭᠢ ᠰᠤᠷᠤᠭᠴᠢ ᠠ᠋ ᠴᠠ ᠲᠠᠰᠢᠷᠠ ᠮ ᠢ ᠢᠠᠷ ᠨᠢᠭᠡ ᠰᠤᠷᠤᠭᠴᠢ ᠶ᠋ ᠢ ᠲᠠ ᠭᠤᠳᠠᠬᠤ ᠳ᠋ ᠤ ᠡᠷᠡᠭᠳᠡᠢ ᠰᠤᠷᠤᠭᠴᠢ ᠪᠣᠯᠬᠤ ᠨᠢ ︵ ︶ A ᠵᠠᠢᠯ ᠠᠰᠢᠭᠦᠢ ᠶᠠᠪᠤ ᠳᠠᠯ B ᠲᠠ
ᠦᠨᠡ᠄ 3.00 ᠮᠥᠩᠭᠥ
ᠠᠴᠢᠶᠠᠯᠠᠭᠰᠠᠨ ᠴᠠᠭ᠄2022-04-18
ᠨᠢᠭᠤᠷ ᠤᠨ ᠲᠣᠭᠠ᠄ 5