{"id":37952,"date":"2023-02-25T21:28:46","date_gmt":"2023-02-25T20:28:46","guid":{"rendered":"https:\/\/www.swisslearn.org\/?p=37952"},"modified":"2023-12-10T20:00:37","modified_gmt":"2023-12-10T19:00:37","slug":"comment-savoir-quune-fonction-rationnelle-a-une-asymptote-oblique","status":"publish","type":"post","link":"https:\/\/www.swisslearn.org\/?p=37952","title":{"rendered":"Comment savoir qu&rsquo;une fonction rationnelle a une asymptote oblique ?"},"content":{"rendered":"<p><\/p>\n<p>Une fonction rationnelle admet une asymptote oblique si son num\u00e9rateur et exactement un degr\u00e9 sup\u00e9rieur \u00e0 son d\u00e9nominateur.<\/p>\n<p>Par exemple les fonctions suivantes ont une asymptote oblique :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-18eabab423bdab689e0139daba7f4e67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#120;&#94;&#50;&#45;&#53;&#120;&#43;&#50;&#125;&#123;&#51;&#120;&#45;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"28\" width=\"132\" style=\"vertical-align: -7px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-3fb673323e60a29a8f007647004bb2cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#52;&#120;&#94;&#50;&#125;&#123;&#50;&#120;&#45;&#51;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"28\" width=\"104\" style=\"vertical-align: -7px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-f0a04e19688760a28d0779aeecab219e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#120;&#94;&#51;&#45;&#50;&#120;&#125;&#123;&#51;&#45;&#120;&#94;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"28\" width=\"112\" style=\"vertical-align: -7px;\"\/><\/p>\n<p>Les fonctions suivantes n&rsquo;ont pas d&rsquo;asymptote oblique :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-f577ad688fefe75e8063a7ef35948bbf_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#120;&#94;&#51;&#45;&#50;&#120;&#125;&#123;&#120;&#43;&#50;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"30\" width=\"112\" style=\"vertical-align: -9px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-711a2e5210bb1a4922fb0c0a6722977e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#120;&#45;&#50;&#125;&#123;&#51;&#120;&#43;&#52;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"27\" width=\"104\" style=\"vertical-align: -9px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-05ea91d055ed0969cd9d01f9b800a182_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#92;&#102;&#114;&#97;&#99;&#123;&#50;&#120;&#45;&#49;&#125;&#123;&#51;&#120;&#94;&#50;&#43;&#53;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"27\" width=\"111\" style=\"vertical-align: -9px;\"\/><\/p>\n<p>On peut aussi d\u00e9tecter l&rsquo;ASO d&rsquo;une fonction rationnelle \u00e9crite sous une forme d\u00e9compos\u00e9e. Par exmple dans la fonction&nbsp; &nbsp;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-b0fb9d5955aab4f499fe002d40517676_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#50;&#120;&#45;&#49;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#120;&#43;&#49;&#125;\" title=\"Rendered by QuickLaTeX.com\" height=\"27\" width=\"176\" style=\"vertical-align: -9px;\"\/>&nbsp; &nbsp;l&rsquo;expression&nbsp; &nbsp;<img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-05af2b7931dcc72e3501f87338261b8c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#50;&#120;&#43;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"16\" width=\"55\" style=\"vertical-align: -2px;\"\/>&nbsp; &nbsp;repr\u00e9sente l&rsquo;asymptote oblique de la fonction :&nbsp; <img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-3e285f1026d90cd549c42fe073737f00_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#65;&#83;&#79;&#58;&#121;&#61;&#50;&#120;&#43;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"153\" style=\"vertical-align: -4px;\"\/>.<\/p>\n<p>Ainsi pour une fonction rationnelle \u00e9crite sous une forme d\u00e9compos\u00e9e, l&rsquo;expression en dehors de la fraction repr\u00e9sente une asymptote oblique si elle est un polyn\u00f4me de 1<sup>er<\/sup> degr\u00e9. Voici quelques exemples :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-0408d8acddbd9859d2908b871f20e3fb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#120;&#45;&#52;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#51;&#120;&#45;&#53;&#125;&#92;&#82;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#32;&#65;&#83;&#79;&#58;&#32;&#121;&#61;&#120;&#45;&#52;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"351\" style=\"vertical-align: -7px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-6064bf6ca784966262297d55ed4b5729_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#45;&#51;&#120;&#43;&#50;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#120;&#94;&#50;&#45;&#49;&#125;&#92;&#82;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#32;&#65;&#83;&#79;&#58;&#32;&#121;&#61;&#45;&#51;&#120;&#43;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"401\" style=\"vertical-align: -7px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-ad900f62047dff56bc8dacfc0bdf85f4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#54;&#120;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#120;&#94;&#50;&#45;&#49;&#125;&#92;&#82;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#32;&#65;&#83;&#79;&#58;&#32;&#121;&#61;&#54;&#120;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"301\" style=\"vertical-align: -7px;\"\/><\/p>\n<p>Si cette expression est un nombre alors elle repr\u00e9sente une asymptote horizontale :<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-3f3f409c7b50cdc09348c8c6c3bbd1f7_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#49;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#120;&#45;&#51;&#125;&#92;&#82;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#32;&#65;&#83;&#72;&#58;&#32;&#121;&#61;&#49;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"273\" style=\"vertical-align: -7px;\"\/><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.swisslearn.org\/wp-content\/ql-cache\/quicklatex.com-a9262ab23e9eb50cafd8a89bd9118024_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#102;&#40;&#120;&#41;&#61;&#45;&#50;&#43;&#92;&#102;&#114;&#97;&#99;&#123;&#49;&#125;&#123;&#50;&#120;&#45;&#53;&#125;&#92;&#82;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#32;&#65;&#83;&#72;&#58;&#32;&#121;&#61;&#45;&#50;\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"312\" style=\"vertical-align: -7px;\"\/><\/p>\n\n","protected":false},"excerpt":{"rendered":"<p>Une fonction rationnelle admet une asymptote oblique si son num\u00e9rateur et exactement un degr\u00e9 sup\u00e9rieur \u00e0 son d\u00e9nominateur. Par exemple les fonctions suivantes ont une asymptote oblique : Les fonctions suivantes n&rsquo;ont pas d&rsquo;asymptote oblique : On peut aussi d\u00e9tecter l&rsquo;ASO d&rsquo;une fonction rationnelle \u00e9crite sous une forme d\u00e9compos\u00e9e. Par exmple dans la fonction&nbsp; &nbsp;&nbsp; [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[20,24,38,39],"tags":[],"class_list":["post-37952","post","type-post","status-publish","format-standard","hentry","category-analyse","category-asymptote-oblique","category-cours","category-limites-et-asymptotes"],"blocksy_meta":"","rttpg_featured_image_url":null,"rttpg_author":{"display_name":"Ressource Web","author_link":"https:\/\/www.swisslearn.org\/?author=2"},"rttpg_comment":0,"rttpg_category":"<a href=\"https:\/\/www.swisslearn.org\/?cat=20\" rel=\"category\">Analyse<\/a> <a href=\"https:\/\/www.swisslearn.org\/?cat=24\" rel=\"category\">Asymptote oblique<\/a> <a href=\"https:\/\/www.swisslearn.org\/?cat=38\" rel=\"category\">Cours<\/a> <a href=\"https:\/\/www.swisslearn.org\/?cat=39\" rel=\"category\">Limites et asymptotes<\/a>","rttpg_excerpt":"Une fonction rationnelle admet une asymptote oblique si son num\u00e9rateur et exactement un degr\u00e9 sup\u00e9rieur \u00e0 son d\u00e9nominateur. Par exemple les fonctions suivantes ont une asymptote oblique : Les fonctions suivantes n&rsquo;ont pas d&rsquo;asymptote oblique : On peut aussi d\u00e9tecter l&rsquo;ASO d&rsquo;une fonction rationnelle \u00e9crite sous une forme d\u00e9compos\u00e9e. Par exmple dans la fonction&nbsp; &nbsp;&nbsp;\u2026","_links":{"self":[{"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/posts\/37952"}],"collection":[{"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=37952"}],"version-history":[{"count":29,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/posts\/37952\/revisions"}],"predecessor-version":[{"id":38194,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=\/wp\/v2\/posts\/37952\/revisions\/38194"}],"wp:attachment":[{"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=37952"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=37952"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.swisslearn.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=37952"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}