{"id":370,"date":"2023-07-04T11:55:40","date_gmt":"2023-07-04T11:55:40","guid":{"rendered":"https:\/\/mathority.org\/ko\/%eb%93%9c-%eb%b0%94%ec%9d%b4%ec%96%b4%ec%8a%88%ed%8a%b8%eb%9d%bc%ec%8a%a4-%ec%a0%95%eb%a6%ac\/"},"modified":"2023-07-04T11:55:40","modified_gmt":"2023-07-04T11:55:40","slug":"%eb%93%9c-%eb%b0%94%ec%9d%b4%ec%96%b4%ec%8a%88%ed%8a%b8%eb%9d%bc%ec%8a%a4-%ec%a0%95%eb%a6%ac","status":"publish","type":"post","link":"https:\/\/mathority.org\/ko\/%eb%93%9c-%eb%b0%94%ec%9d%b4%ec%96%b4%ec%8a%88%ed%8a%b8%eb%9d%bc%ec%8a%a4-%ec%a0%95%eb%a6%ac\/","title":{"rendered":"\ubc14\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4\uc758 \uc815\ub9ac"},"content":{"rendered":"

\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 Weierstrass \uc815\ub9ac\uc758 \uc815\uc758\ub97c \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, Weierstrass \uc815\ub9ac\ub97c \ub2e8\uacc4\ubcc4\ub85c \ud480\uc5b4\ub0b4\ub294 \uc5ec\ub7ec \uc5f0\uc2b5\ubb38\uc81c\ub97c \ud1b5\ud574 \uc2e4\uc2b5\uc744 \ud1b5\ud574 \uc644\ubcbd\ud558\uac8c \uc774\ud574\ud560 \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4. <\/p>\n

<\/span> Weierstrass\uc758 \uc815\ub9ac\uc5d0 \ub300\ud55c \uc124\uba85<\/span><\/h2>\n

Weierstrass\uc758 \uc815\ub9ac\uc5d0 \ub530\ub974\uba74 \ud568\uc218\uac00 \ub2eb\ud78c \uad6c\uac04\uc5d0\uc11c \uc5f0\uc18d\uc778 \uacbd\uc6b0 \ud574\ub2f9 \ud568\uc218\ub294 \ud574\ub2f9 \uad6c\uac04\uc5d0\uc11c \uc808\ub300 \ucd5c\ub300\uac12\uacfc \uc808\ub300 \ucd5c\uc18c\uac12\uc744 \uac16\uc2b5\ub2c8\ub2e4.<\/strong><\/p>\n

\u27a4<\/span> \ucc38\uace0:<\/strong> \uc5f0\uc18d\ud568\uc218\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c?<\/a><\/span><\/p>\n

Weierstrass\uc758 \uc815\ub9ac\ub294 \ucd5c\ub300\uac12\uacfc \ucd5c\uc18c\uac12\uc774 \uc788\ub2e4\ub294 \uac83\ub9cc \uba85\uc2dc\ud558\uace0 \uc774\ub7ec\ud55c \uc810\uc758 \uac12\uc744 \uacc4\uc0b0\ud558\ub294 \uac83\uc740 \uc720\uc6a9\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. <\/p>\n

\n
\"\uc6e8\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4<\/figure>\n<\/div>\n

\uc608\ub97c \ub4e4\uc5b4, \uc704\uc5d0 \uadf8\ub798\ud504\ub85c \ud45c\uc2dc\ub41c \ud568\uc218\ub294 \uad6c\uac04 [a,b]\uc5d0\uc11c \uc5f0\uc18d\uc774\uace0 \uc774 \uad6c\uac04\uc5d0\uc11c \ucd5c\uc18c\uac12\uacfc \ucd5c\ub300\uac12\uc744 \uac16\uc2b5\ub2c8\ub2e4. \uc774 \ub450 \uc810\uc758 \uc815\ud655\ud55c \uc88c\ud45c\ub97c \uc54c \uc218\ub294 \uc5c6\uc9c0\ub9cc \ud568\uc218\uc758 \uad6c\uac04\uc5d0 \uc774 \ub450 \ub05d\uc810\uc774 \uc788\ub2e4\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\u27a4<\/span> \ucc38\uc870:<\/strong> \ud568\uc218\uc758 \ucd5c\ub300\uac12\uacfc \ucd5c\uc18c\uac12\uc744 \uacc4\uc0b0\ud558\ub294 \ubc29\ubc95<\/a><\/span><\/p>\n

\ud568\uc218\uac00 \uc804\uccb4 \uac04\uaca9\uc5d0 \uac78\uccd0 \uc5f0\uc18d\uc801\uc774\ubbc0\ub85c \ub3d9\uc77c\ud55c \uac04\uaca9\uc5d0 \uac78\uccd0 \uc808\ub300 \ucd5c\uc18c\uac12\uacfc \uc808\ub300 \ucd5c\ub300\uac12 \uc0ac\uc774\uc758 \uac00\ub2a5\ud55c \ubaa8\ub4e0 \uac12\ub3c4 \ucde8\ud558\uac8c \ub429\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c Weierstrass \uc815\ub9ac\uc758 \uacb0\uacfc\ub85c \ub2eb\ud78c \uad6c\uac04\uc758 \ubaa8\ub4e0 \uc5f0\uc18d \ud568\uc218\ub294 \uc704\uc640 \uc544\ub798\uc758 \uacbd\uacc4\ub97c<\/strong> \uac00\uc9c0\uba70 \ud568\uc218\uc758 \uc0c1\ud55c\uacfc \ud558\ud55c\uc740 \uac01\uac01 \uc808\ub300 \ucd5c\ub300\uac12\uacfc \ucd5c\uc18c\uac12\uc784\uc744 \ucd94\ub860\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc218\ud559\uc801\uc73c\ub85c Weierstrass\uc758 \uc815\ub9ac\ub294 \ub2e4\uc74c\uacfc \uac19\uc774 \ud45c\ud604\ub420 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x_1)\\leq<\/p>\n<\/p>\n

\uae08<\/p>\n<\/p>\n

\"x_1\"<\/p>\n

\uadf8\ub9ac\uace0<\/p>\n

\"x_2\"<\/p>\n

\ub2eb\ud78c \uad6c\uac04\uc5d0 \ud3ec\ud568\ub41c \ub450 \uc810(\uac01\uac01 \uc808\ub300 \ucd5c\uc18c\uac12\uacfc \uc808\ub300 \ucd5c\ub300\uac12)\uc785\ub2c8\ub2e4.<\/p>\n

\"[a,b]\"<\/p>\n

\ud568\uc218\uac00 \uc815\uc758\ub418\uc5b4 \uc788\ub294 \uacf3\uc785\ub2c8\ub2e4.<\/p>\n

Weierstrass \uc815\ub9ac\uc758 \uc99d\uba85\uc740 \uc0c1\ub2f9\ud788 \ubcf5\uc7a1\ud558\uace0 \uac1c\ub150\uc5d0 \ub9ce\uc740 \uae30\uc5ec\ub97c \ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 \uc124\uba85\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4. \uc911\uc694\ud55c \uac83\uc740 Weierstrass \uc815\ub9ac\uac00 \ubb34\uc5c7\uc778\uc9c0, \uadf8\ub9ac\uace0 \uadf8\uac83\uc774 \uc5b4\ub514\uc5d0 \uc0ac\uc6a9\ub418\ub294\uc9c0 \uc774\ud574\ud558\ub294 \uac83\uc785\ub2c8\ub2e4. <\/p>\n

<\/span> Weierstrass \uc815\ub9ac\ub85c \ubb38\uc81c \ud574\uacb0<\/span><\/h2>\n

\uc5f0\uc2b5 1<\/h3>\n

\ub2e4\uc74c \ud568\uc218\uac00 \uc81c\uc548\ub41c \uad6c\uac04\uc5d0 \uc81c\ud55c\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x)=\\log_3(x-4)<\/p>\n<\/p>\n

\u27a4<\/span> \ucc38\uace0:<\/strong> \ub85c\uadf8 \ud568\uc218\uc758 \uc601\uc5ed<\/a><\/span> <\/p>\n

\n
\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n

Weierstrass \uc815\ub9ac\ub97c \uc801\uc6a9\ud558\uc5ec \ud568\uc218\uac00 \uad6c\uac04 [5,10]\uc5d0 \uad6d\ud55c\ub418\uc5b4 \uc788\ub294\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc6b0\ub9ac\ub294 \ud568\uc218\uac00 \uc774 \uad6c\uac04\uc5d0\uc11c \uc5f0\uc18d\uc778\uc9c0 \uc54c\uc544\uc57c \ud569\ub2c8\ub2e4. \uc774\ub97c \uc704\ud574 \ub85c\uadf8 \ud568\uc218\uc758 \uc601\uc5ed\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"x-40″ title=”Rendered by QuickLaTeX.com” height=”14″ width=”73″ style=”vertical-align: -2px;”><\/p>\n<\/p>\n

\"x4″ title=”Rendered by QuickLaTeX.com” height=”14″ width=”43″ style=”vertical-align: -2px;”><\/p>\n<\/p>\n

\"\\text{Dom<\/p>\n<\/p>\n

\uc774 \ud568\uc218\ub294 x=4\ubcf4\ub2e4 \ud070 \ubaa8\ub4e0 \uac12\uc5d0 \ub300\ud574 \uc5f0\uc18d\uc774\ubbc0\ub85c \uad6c\uac04 [5,10]\uc5d0\uc11c \uc5f0\uc18d\uc785\ub2c8\ub2e4.<\/p>\n

\ub530\ub77c\uc11c \ud568\uc218\ub294 \uad6c\uac04 [5,10]\uc5d0\uc11c Weierstrass\uc758 \uc815\ub9ac\ub97c \ub9cc\uc871\ud569\ub2c8\ub2e4. \uc989, \uc774 \uad6c\uac04\uc5d0\uc11c \uc704\uc640 \uc544\ub798\uc5d0 \uacbd\uacc4\uac00 \uc788\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n

<\/div>\n

\uc5f0\uc2b5 2<\/h3>\n

\ub2e4\uc74c \ud568\uc218\uac00 \uc81c\uc548\ub41c \uac04\uaca9\uc5d0 \uac78\uccd0 \ucd5c\ub300\uac12 \ubc0f\/\ub610\ub294 \ucd5c\uc18c\uac12\uc744 \uac16\ub294\uc9c0 \ud655\uc778\ud569\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x)=\\cfrac{3x^2-4}{2x-4}<\/p>\n<\/p>\n

\u27a4<\/span> \ucc38\uace0:<\/strong> \uc720\ub9ac\ud568\uc218\uc758 \uc601\uc5ed<\/a><\/span> <\/p>\n

\n
\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n

\uba3c\uc800 \uc720\ub9ac \ud568\uc218\uc758 \uc5f0\uc18d\uc131\uc744 \ubd84\uc11d\ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"2x-4=0\"<\/p>\n<\/p>\n

\"2x=4\"<\/p>\n<\/p>\n

\"x=\\cfrac{4}{2}=2\"<\/p>\n<\/p>\n

\"\\text{Dom<\/p>\n<\/p>\n

\uadf8\ub7ec\ub098 \uc774 \ud568\uc218\ub294 x=2\uc5d0\uc11c \ubd88\uc5f0\uc18d\uc131\uc744 \ub098\ud0c0\ub0b4\uba70, \uc774\ub294 \uad6c\uac04 [-3,3]\uc5d0\uc11c \uc5f0\uc18d\ub418\uc9c0 \uc54a\uc74c\uc744 \uc758\ubbf8\ud569\ub2c8\ub2e4.<\/p>\n

\uc989, \ud568\uc218\ub294 Weierstrass\uc758 \uc815\ub9ac\ub97c \ub9cc\uc871\ud558\uc9c0 \uc54a\uc73c\ubbc0\ub85c \uc774 \uad6c\uac04\uc5d0\uc11c \ucd5c\uc18c\uac12 \ub610\ub294 \ucd5c\ub300\uac12\uc744 \uac16\ub294\uc9c0 \uc5ec\ubd80\ub97c \ub9d0\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n

<\/div>\n

\uc5f0\uc2b5 3<\/h3>\n

\ub2e4\uc74c \ud568\uc218\uac00 \uc81c\uc548\ub41c \uad6c\uac04\uc5d0\uc11c \ucd5c\ub300\uac12 \ubc0f\/\ub610\ub294 \ucd5c\uc18c\uac12\uc744 \uac16\ub294\uc9c0 \ud655\uc778\ud558\uace0 \ub2e4\uc74c \uc810\uc744 \uacc4\uc0b0\ud569\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x)=x^2+3<\/p>\n<\/p>\n

\u27a4<\/span> \ucc38\uc870:<\/strong> \uc774\ucc28 \ud568\uc218\uc758 \ud2b9\uc131<\/a><\/span> <\/p>\n

\n
\ud574\uacb0\ucc45 \ubcf4\uae30<\/strong><\/div>\n<\/div>\n

\ubaa8\ub4e0 \uc774\ucc28 \ud568\uc218\uc758 \uc815\uc758\uc5ed\uc740 \ubaa8\ub450 \uc2e4\uc218\uc785\ub2c8\ub2e4:<\/p>\n<\/p>\n

\"\\text{Dom<\/p>\n<\/p>\n

\ub530\ub77c\uc11c \ud568\uc218\ub294 \uad6c\uac04 [0,4]\uc5d0\uc11c \uc5f0\uc18d\uc774\uace0 Weierstrass \uc815\ub9ac\ub97c \ucda9\uc871\ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \ud568\uc218\ub294 \uc774 \uad6c\uac04\uc5d0\uc11c \uc808\ub300 \ucd5c\uc18c\uac12\uacfc \uc808\ub300 \ucd5c\ub300\uac12\uc744 \uac16\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub610\ud55c \uc774 \ud3ec\ubb3c\uc120\uc758 \uaf2d\uc9c0\uc810\uc740 \uc815\ud655\ud788 x=0\uc5d0 \uc788\uc73c\ubbc0\ub85c \ud568\uc218\ub294 \uac04\uaca9 [0,4]\uc5d0\uc11c \uc5c4\uaca9\ud558\uac8c \uc99d\uac00\ud558\uba70 \uacb0\uacfc\uc801\uc73c\ub85c \ucd5c\uc18c\uac12\uc740 x=0\uc5d0 \uc788\uace0 \ucd5c\ub300\uac12\uc740 x= 4\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"\\text{M\\'inimo<\/p>\n<\/p>\n

\"\\text{M\\'aximo<\/p>\n<\/p>\n

<\/div>\n

<\/span> \uce7c \ubc14\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4<\/span><\/h2>\n

Weierstrass \uc815\ub9ac\uac00 \ubb34\uc5c7\uc744 \uc758\ubbf8\ud558\ub294\uc9c0 \ud655\uc778\ud55c \ud6c4\uc5d0\ub294 \uc774 \uc815\ub9ac\uc758 \ubaa9\ub85d\uc774 \ub204\uad6c\uc778\uc9c0 \uac04\ub7b5\ud558\uac8c \uc124\uba85\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n

\uce74\ub97c \ud14c\uc624\ub3c4\ub974 \ube4c\ud5ec\ub984 \ubc14\uc774\uc5b4\uc2a4\ud2b8\ub77c\uc2a4(Karl Theodor Wilhelm Weierstrass)<\/strong> \ub294 19\uc138\uae30 \ub3c5\uc77c\uc758 \ub9e4\uc6b0 \uc911\uc694\ud55c \uc218\ud559\uc790\uc600\uc2b5\ub2c8\ub2e4. \ubcf4\ub2e4 \uc815\ud655\ud558\uac8c\ub294 1815\ub144 10\uc6d4 31\uc77c \uc624\uc2a4\ud150\ud3a0\ub370\uc5d0\uc11c \ud0dc\uc5b4\ub098 1897\ub144 2\uc6d4 19\uc77c \ubca0\ub97c\ub9b0\uc5d0\uc11c \uc0ac\ub9dd\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

Weierstrass\uc758 \uc815\ub9ac \uc678\uc5d0\ub3c4 \uadf8\ub294 \uc218\ud559\uc5d0 \ub300\ud55c \ub2e4\ub978 \uacf5\ud5cc\uc73c\ub85c\ub3c4 \uc720\uba85\ud569\ub2c8\ub2e4. \uadf8 \uc911\uc5d0\uc11c \uadf8\ub294 \ud568\uc218\uc758 \uc138 \uac00\uc9c0 \ub9e4\uc6b0 \uc911\uc694\ud55c \uac1c\ub150\uc778 \uc5f0\uc18d\uc131, \uadf9\ud55c, \ubbf8\ubd84\uc758 \uc815\uc758\ub97c \uc81c\uc2dc\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\ub9c8\ucc2c\uac00\uc9c0\ub85c \uadf8\ub294 Bolzano-Weierstrass \uc815\ub9ac, \ud3c9\uade0\uac12 \uc815\ub9ac \ub610\ub294 Heine-Borel \uc815\ub9ac\uc640 \uac19\uc774 \ub2f9\uc2dc \uc544\uc9c1 \uc218\ud559\uc801\uc73c\ub85c \uac80\uc99d\ub418\uc9c0 \uc54a\uc740 \ud2b9\uc815 \uc815\ub9ac\ub97c \uc785\uc99d\ud588\uc2b5\ub2c8\ub2e4.<\/p>\n

\ud638\uae30\uc2ec\uc73c\ub85c \ub2ec \ubd84\ud654\uad6c\uc640 \uadf8\ub97c \uae30\ub9ac\uae30 \uc704\ud574 \ubc14\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4\uc758 \uc774\ub984\uc744 \ub534 \uc18c\ud589\uc131\uc774 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n","protected":false},"excerpt":{"rendered":"

\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 Weierstrass \uc815\ub9ac\uc758 \uc815\uc758\ub97c \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, Weierstrass \uc815\ub9ac\ub97c \ub2e8\uacc4\ubcc4\ub85c \ud480\uc5b4\ub0b4\ub294 \uc5ec\ub7ec \uc5f0\uc2b5\ubb38\uc81c\ub97c \ud1b5\ud574 \uc2e4\uc2b5\uc744 \ud1b5\ud574 \uc644\ubcbd\ud558\uac8c \uc774\ud574\ud560 \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4. Weierstrass\uc758 \uc815\ub9ac\uc5d0 \ub300\ud55c \uc124\uba85 Weierstrass\uc758 \uc815\ub9ac\uc5d0 \ub530\ub974\uba74 \ud568\uc218\uac00 \ub2eb\ud78c \uad6c\uac04\uc5d0\uc11c \uc5f0\uc18d\uc778 \uacbd\uc6b0 \ud574\ub2f9 \ud568\uc218\ub294 \ud574\ub2f9 \uad6c\uac04\uc5d0\uc11c \uc808\ub300 \ucd5c\ub300\uac12\uacfc \uc808\ub300 \ucd5c\uc18c\uac12\uc744 \uac16\uc2b5\ub2c8\ub2e4. \u27a4 \ucc38\uace0: \uc5f0\uc18d\ud568\uc218\ub780 \ubb34\uc5c7\uc785\ub2c8\uae4c? Weierstrass\uc758 \uc815\ub9ac\ub294 \ucd5c\ub300\uac12\uacfc \ucd5c\uc18c\uac12\uc774 \uc788\ub2e4\ub294 \uac83\ub9cc \uba85\uc2dc\ud558\uace0 …<\/p>\n

\ubc14\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4\uc758 \uc815\ub9ac<\/span> \ub354 \ubcf4\uae30 »<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-370","post","type-post","status-publish","format-standard","hentry","category-18"],"yoast_head":"\nWeierstrass\uc758 \uc815\ub9ac - Mathority<\/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:\/\/mathority.org\/ko\/\ub4dc-\ubc14\uc774\uc5b4\uc288\ud2b8\ub77c\uc2a4-\uc815\ub9ac\/\" \/>\n<meta property=\"og:locale\" content=\"ko_KR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Weierstrass\uc758 \uc815\ub9ac - Mathority\" \/>\n<meta property=\"og:description\" content=\"\uc774 \uae30\uc0ac\uc5d0\uc11c\ub294 Weierstrass \uc815\ub9ac\uc758 \uc815\uc758\ub97c \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ub610\ud55c, Weierstrass \uc815\ub9ac\ub97c \ub2e8\uacc4\ubcc4\ub85c \ud480\uc5b4\ub0b4\ub294 \uc5ec\ub7ec \uc5f0\uc2b5\ubb38\uc81c\ub97c \ud1b5\ud574 \uc2e4\uc2b5\uc744 \ud1b5\ud574 \uc644\ubcbd\ud558\uac8c \uc774\ud574\ud560 \uc218 \uc788\uac8c \ub429\ub2c8\ub2e4. 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