{"id":390,"date":"2023-07-03T13:35:39","date_gmt":"2023-07-03T13:35:39","guid":{"rendered":"https:\/\/mathority.org\/ko\/%ec%8c%8d%ea%b3%a1%ec%84%a0-%ed%83%84%ec%a0%a0%ed%8a%b8%ec%9d%98-%ed%8c%8c%ec%83%9d%eb%ac%bc\/"},"modified":"2023-07-03T13:35:39","modified_gmt":"2023-07-03T13:35:39","slug":"%ec%8c%8d%ea%b3%a1%ec%84%a0-%ed%83%84%ec%a0%a0%ed%8a%b8%ec%9d%98-%ed%8c%8c%ec%83%9d%eb%ac%bc","status":"publish","type":"post","link":"https:\/\/mathority.org\/ko\/%ec%8c%8d%ea%b3%a1%ec%84%a0-%ed%83%84%ec%a0%a0%ed%8a%b8%ec%9d%98-%ed%8c%8c%ec%83%9d%eb%ac%bc\/","title":{"rendered":"\uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84"},"content":{"rendered":"

\uc5ec\uae30\uc5d0\uc11c \ud568\uc218\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd94\uac00\uc801\uc73c\ub85c, \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \ud574\uacb0\ub41c \uc608\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc30d\uace1\ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84 \uacf5\uc2dd\uc744 \ubcf4\uc5ec\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. <\/p>\n

<\/span> \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uacf5\uc2dd<\/span><\/h2>\n

x\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\ub294 1\uc744 x\uc758 \uc30d\uace1\uc120 \ucf54\uc0ac\uc778\uc758 \uc81c\uacf1\uc73c\ub85c \ub098\ub208 \uac83\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/strong> x\uc758 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\ub294 x\uc758 \uc30d\uace1\uc120 \uc2dc\ucee8\ud2b8\uc758 \uc81c\uacf1\uacfc 1\uc5d0\uc11c x\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \uc81c\uacf1\uc744 \ube80 \uac83\uacfc \ub3d9\uc77c\ud569\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"\\begin{array}{c}f(x)=\\text{tanh}(x)\\\\[1.5ex]\\color{orange}\\bm{\\downarrow}\\color{black}\\\\<\/p>\n<\/p>\n

\ubc18\uba74\uc5d0 \ud568\uc218 \uc778\uc218\uc5d0 x \uc774\uc678\uc758 \ud568\uc218\uac00 \uc788\ub294 \uacbd\uc6b0 \uccb4\uc778 \uaddc\uce59\uc744 \uc801\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uc138 \uac00\uc9c0 \uacf5\uc2dd\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"\\begin{array}{c}f(x)=\\text{tanh}(u)\\\\[1.5ex]\\color{orange}\\bm{\\downarrow}\\color{black}\\\\<\/p>\n<\/p>\n

\uc774\ub294 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\ub97c \ub3c4\ucd9c\ud560 \ub54c\ub9c8\ub2e4 \uc138 \uac00\uc9c0 \uacf5\uc2dd\uc744 \ubaa8\ub450 \uc0ac\uc6a9\ud574\uc57c \ud55c\ub2e4\ub294 \uc758\ubbf8\uac00 \uc544\ub2c8\ub77c, \uadf8 \uc911 \uc5b4\ub290 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud574\ub3c4 \uc774\ub97c \ub3c4\ucd9c\ud560 \uc218 \uc788\ub2e4\ub294 \uc758\ubbf8\uc785\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8 \uc778\uc218\uc758 \uae30\ub2a5\uc5d0 \ub530\ub77c \ud558\ub098\uc758 \uacf5\uc2dd \ub610\ub294 \ub2e4\ub978 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \ub354 \uc88b\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c\uc740 \ud568\uc218\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uac00 \uc5b4\ub5bb\uac8c \ud30c\uc0dd\ub418\ub294\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\ub294 \uba87 \uac00\uc9c0 \uc608\uc785\ub2c8\ub2e4. <\/p>\n

\n
\"\uc30d\uace1\uc120<\/figure>\n<\/div>\n

\uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\ub294 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc640 \uac70\uc758 \ub3d9\uc77c\ud558\uc9c0\ub9cc \uc644\uc804\ud788 \ub2e4\ub974\uac8c \ub9cc\ub4dc\ub294 \uc791\uc740 \uc138\ubd80 \uc0ac\ud56d\uc774 \uc788\uc2b5\ub2c8\ub2e4. \ub2e4\uc74c \ub9c1\ud06c\uc5d0\uc11c \ucc28\uc774\uc810\uc774 \ubb34\uc5c7\uc778\uc9c0 \ud655\uc778\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n

\u27a4<\/span> \ucc38\uace0:<\/strong> \ud0c4\uc820\ud2b8 \ubbf8\ubd84 \uacf5\uc2dd<\/a><\/span> <\/p>\n

<\/span> \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218 \uc608<\/span><\/h2>\n

\uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uacf5\uc2dd\uc774 \ubb34\uc5c7\uc778\uc9c0 \ud655\uc778\ud55c \ud6c4, \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\ub97c \uc720\ub3c4\ud558\ub294 \ubc29\ubc95\uc744 \uc644\uc804\ud788 \uc774\ud574\ud560 \uc218 \uc788\ub3c4\ub85d \uc774\ub7ec\ud55c \uc720\ud615\uc758 \uc0bc\uac01 \ud568\uc218 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \ud574\uacb0\ub41c \uc608\uac00 \uc5ec\uae30\uc5d0 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n

<\/span> \uc608 1: 2x \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ud30c\uc0dd<\/span><\/h3>\n<\/p>\n

\"f(x)=\\text{tanh}(2x)\"<\/p>\n<\/p>\n

\uc774 \uc608\uc5d0\uc11c \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\ub97c \ub3c4\ucd9c\ud558\uae30 \uc704\ud574 \uc6b0\ub9ac\ub294 \uc30d\uace1\uc120 \ucf54\uc0ac\uc778 \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud560 \uac83\uc785\ub2c8\ub2e4. \ubb3c\ub860 \uc6d0\ud558\ub294 \uac83\uc744 \uc0ac\uc6a9\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x)=\\text{tanh}(u)\\quad\\color{orange}\\bm{\\longrightarrow}\\quad\\color{black}<\/p>\n<\/p>\n

\uc6b0\ub9ac\ub294 2x\uc758 \ub3c4\ud568\uc218\uac00 2\ub77c\ub294 \uac83\uc744 \uc54c\uace0 \uc788\uc73c\ubbc0\ub85c \uc804\uccb4 \ud568\uc218\uc758 \ub3c4\ud568\uc218\ub294 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"f(x)=\\text{tanh}(2x)\\quad\\color{orange}\\bm{\\longrightarrow}\\quad\\color{black}<\/p>\n<\/p>\n

<\/span> \uc608 2: x \uc81c\uacf1\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8 \ud30c\uc0dd<\/span><\/h3>\n<\/p>\n

\"f(x)=\\text{tanh}(x^2)\"<\/p>\n<\/p>\n

\ud568\uc218\uc758 \uc30d\uace1\ud0c4\uc820\ud2b8 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uaddc\uce59\uc740 \ub2e4\uc74c\uacfc \uac19\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"f(x)=\\text{tanh}(u)\\quad\\color{orange}\\bm{\\longrightarrow}\\quad\\color{black}<\/p>\n<\/p>\n

\ud55c\ud3b8\uc73c\ub85c \uc6b0\ub9ac\ub294 \ud568\uc218\ub97c 2x\ub97c \uc81c\uacf5\ud558\ub294 \uc778\uc218 x 2<\/sup> \uc640 \ucc28\ubcc4\ud654\ud55c \ub2e4\uc74c \ub2e4\uc74c \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \uc804\uccb4 \ud568\uc218\uc758 \ub3c4\ud568\uc218\ub97c \uad6c\ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"f(x)=\\text{tanh}(x^2)\\quad\\color{orange}\\bm{\\longrightarrow}\\quad\\color{black}<\/p>\n<\/p>\n

<\/span> \uc608\uc81c 3: \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8 \uc138\uc81c\uacf1\uc758 \ub3c4\ud568\uc218<\/span><\/h3>\n<\/p>\n

\"f(x)=\\text{tanh}^3(7x^2)\"<\/p>\n<\/p>\n

\uc774 \uacbd\uc6b0, \uc6b0\ub9ac\ub294 \ub610\ud55c \uac70\ub4ed\uc81c\uacf1\ub418\ub294 \ud568\uc218\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\ub97c \uc720\ub3c4\ud574\uc57c \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uc6b0\ub9ac\ub294 \uc7a0\uc7ac\uc801\uc778 \ud568\uc218\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uacf5\uc2dd, \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uaddc\uce59 \ubc0f \uccb4\uc778 \uaddc\uce59\uc744 \uc0ac\uc6a9\ud574\uc57c \ud569\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"f'(x)=3\\text{tanh}^2(7x^2)\\cdot<\/p>\n<\/p>\n

<\/span> \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84 \uc99d\uba85<\/span><\/h2>\n

\uc774\ubc88 \uc139\uc158\uc5d0\uc11c\ub294 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84 \uacf5\uc2dd\uc744 \ubcf4\uc5ec\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \uc774\ub97c \uc704\ud574 \uc138 \uac00\uc9c0 \uc30d\uace1\uc120 \uc0bc\uac01\ube44\ub97c \uc5f0\uacb0\ud558\ub294 \uc0bc\uac01 \ud56d\ub4f1\uc2dd\ubd80\ud130 \uc2dc\uc791\ud558\uaca0\uc2b5\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"\\text{tanh}(x)=\\cfrac{\\text{senh}(x)}{\\text{cosh}(x)}\"<\/p>\n<\/p>\n

\u27a4<\/span> \ucc38\uace0:<\/strong> \uc99d\uba85\uc744 \uc774\ud574\ud558\ub824\uba74 \uc30d\uace1\uc0ac\uc778\uc758 \ub3c4\ud568\uc218\uac00<\/a><\/span> \ubb34\uc5c7\uc778\uc9c0, \uc30d\uace1\uc120 \ucf54\uc0ac\uc778\uc758 \ub3c4\ud568\uc218\uac00<\/a><\/span> \ubb34\uc5c7\uc778\uc9c0 \uc54c\uc544\uc57c \ud569\ub2c8\ub2e4. \ub530\ub77c\uc11c \uacc4\uc18d\ud558\uae30 \uc804\uc5d0 \ub9c1\ud06c\ub41c \ud398\uc774\uc9c0\ub97c \ubc29\ubb38\ud558\ub294 \uac83\uc774 \uc88b\uc2b5\ub2c8\ub2e4.<\/p>\n

\uc774\uc81c \ubaab\uc758 \ubbf8\ubd84 \uacf5\uc2dd\uc744 \uc801\uc6a9\ud574 \ubcf4\uaca0\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"\\displaystyle\\left(\\text{tanh}(x)\\right)'=\\left(\\frac{\\text{senh}(x)}{\\text{cosh}(x)}\\right)'\"<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=\\cfrac{\\text{cosh}(x)\\cdot<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=\\cfrac{\\text{cosh}^2(x)-\\text{senh}^2(x)}{\\text{cosh}^2(x)}\"<\/p>\n<\/p>\n

\ub2e4\uc74c \uacf5\uc2dd\uc744 \uc0ac\uc6a9\ud558\uc5ec \ubd84\uc218\uc758 \ubd84\uc790 \ud45c\ud604\uc744 \uc904\uc785\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"\\text{cosh}^2(x)-\\text{senh}^2(x)=1\"<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=\\cfrac{1}{\\text{cosh}^2(x)}\"<\/p>\n<\/p>\n

\ubcf4\uc2dc\ub2e4\uc2dc\ud53c, \uc774\uc804 \ud3c9\ub4f1\uc740 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uccab \ubc88\uc9f8 \uacf5\uc2dd\uc5d0 \ud574\ub2f9\ud569\ub2c8\ub2e4. \ub9c8\ucc2c\uac00\uc9c0\ub85c \uc30d\uace1\uc120 \uc2dc\ucee8\ud2b8\ub294 \uc30d\uace1\uc120 \ucf54\uc0ac\uc778\uc758 \uacf1\uc148\uc758 \uc5ed\uc774\ubbc0\ub85c \ub450 \ubc88\uc9f8 \uacf5\uc2dd\ub3c4 \ub3c4\ucd9c\ub429\ub2c8\ub2e4.<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=\\text{sech}^2(x)\"<\/p>\n<\/p>\n

\ub9c8\uc9c0\ub9c9\uc73c\ub85c, \uc774\uc804 \ub2e8\uacc4\uc758 \ubd84\uc218\ub97c \ubd84\uc218\uc758 \ube84\uc148\uc73c\ub85c \ubcc0\ud658\ud558\uc5ec \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8 \ub3c4\ud568\uc218\uc758 \uc138 \ubc88\uc9f8 \uaddc\uce59\uc5d0 \ub3c4\ub2ec\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4. <\/p>\n<\/p>\n

\"\\text{tan}'(x)=\\cfrac{\\text{cosh}^2(x)-\\text{senh}^2(x)}{\\text{cosh}^2(x)}\"<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=\\cfrac{\\text{cosh}^2(x)}{\\text{cosh}^2(x)}-\\cfrac{\\text{senh}^2(x)}{\\text{cosh}^2(x)}\"<\/p>\n<\/p>\n

\"\\text{tanh}'(x)=1-\\text{tanh}^2(x)\"<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"

\uc5ec\uae30\uc5d0\uc11c \ud568\uc218\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84\uc744 \ucc3e\uc744 \uc218 \uc788\uc2b5\ub2c8\ub2e4. \ucd94\uac00\uc801\uc73c\ub85c, \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uba87 \uac00\uc9c0 \ud574\uacb0\ub41c \uc608\ub97c \ubcfc \uc218 \uc788\uc2b5\ub2c8\ub2e4. \uadf8\ub9ac\uace0 \ub9c8\uc9c0\ub9c9\uc73c\ub85c \uc30d\uace1\ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84 \uacf5\uc2dd\uc744 \ubcf4\uc5ec\ub4dc\ub9ac\uaca0\uc2b5\ub2c8\ub2e4. \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\uc5d0 \ub300\ud55c \uacf5\uc2dd x\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\ub294 1\uc744 x\uc758 \uc30d\uace1\uc120 \ucf54\uc0ac\uc778\uc758 \uc81c\uacf1\uc73c\ub85c \ub098\ub208 \uac83\uacfc \uac19\uc2b5\ub2c8\ub2e4. x\uc758 \ud0c4\uc820\ud2b8\uc758 \ub3c4\ud568\uc218\ub294 x\uc758 \uc30d\uace1\uc120 \uc2dc\ucee8\ud2b8\uc758 \uc81c\uacf1\uacfc 1\uc5d0\uc11c x\uc758 \uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \uc81c\uacf1\uc744 …<\/p>\n

\uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84<\/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":[7],"tags":[],"class_list":["post-390","post","type-post","status-publish","format-standard","hentry","category-7"],"yoast_head":"\n\uc30d\uace1\uc120 \ud0c4\uc820\ud2b8\uc758 \ubbf8\ubd84 - 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