{"id":2370,"date":"2020-12-01T19:04:21","date_gmt":"2020-12-01T18:04:21","guid":{"rendered":"http:\/\/caneri.gmollet.free.fr\/?page_id=2370"},"modified":"2023-09-13T16:06:48","modified_gmt":"2023-09-13T14:06:48","slug":"activite-xviii-problemes","status":"publish","type":"page","link":"https:\/\/courscaneri.ovh\/?page_id=2370","title":{"rendered":"Activit\u00e9 XVIII &#8211; Probl\u00e8mes"},"content":{"rendered":"<h2>Probl\u00e8me 1<\/h2>\n<p>Le capitaine d&#8217;un bateau de tourisme veut montrer le littoral \u00e0 ses passagers. Cependant, un rocher est \u00e0 200m de la c\u00f4te. Il choisit donc de se placer toujours \u00e0 \u00e9quidistance du rocher et de la c\u00f4te.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/caneri.gmollet.free.fr\/wp-content\/uploads\/2020\/12\/bateau-rocher.png\" alt=\"\" \/><\/p>\n<p>Pour mod\u00e9liser le probl\u00e8me, on se placera dans un rep\u00e8re orthonorm\u00e9 <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-40c372dd8f7e7897318aea41703c10a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#79;&#59;&#92;&#111;&#118;&#101;&#114;&#114;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#123;&#105;&#125;&#44;&#92;&#111;&#118;&#101;&#114;&#114;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#123;&#106;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"32\" width=\"81\" style=\"vertical-align: -11px;\"\/><\/code>.<br \/>\nLe rocher est repr\u00e9sent\u00e9 par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-7fe3f833e8641c8ceaef52c012039d6f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#82;&#40;&#48;&#59;&#50;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"52\" style=\"vertical-align: -5px;\"\/><\/code> et le bateau par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-784a6a053eb8c0d76ce6207e17f16d1a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#66;&#40;&#120;&#59;&#121;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"55\" style=\"vertical-align: -5px;\"\/><\/code>.<br \/>\nLa c\u00f4te est repr\u00e9sent\u00e9e par l&#8217;axe des abscisses.<br \/>\n<img decoding=\"async\" src=\"http:\/\/caneri.gmollet.free.fr\/wp-content\/uploads\/2020\/12\/bateau-rocher2.png\" alt=\"\" \/><\/p>\n<ol>\n<li>D\u00e9terminer l&#8217;expression de la distance entre le rocher et le bateau en fonction de <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-7e5fbfa0bbbd9f3051cd156a0f1b5e31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#120;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"\/><\/code> et <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-38461fc041e953482219abf5d4cce1cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#121;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"\/><\/code>.<\/li>\n<li>D\u00e9terminer l&#8217;expression de la distance entre le bateau et la c\u00f4te en fonction de <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-7e5fbfa0bbbd9f3051cd156a0f1b5e31_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#120;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"10\" style=\"vertical-align: 0px;\"\/><\/code> et <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-38461fc041e953482219abf5d4cce1cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#121;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"\/><\/code>.<\/li>\n<li>En d\u00e9duire l&#8217;\u00e9quation r\u00e9duite de l&#8217;ensemble des points repr\u00e9sentant la trajectoire du b\u00e2teau.<\/li>\n<li>Quel est le nom de cette trajectoire?<\/li>\n<li>Un homme, qui se trouve \u00e0 l&#8217;est du rocher, nage en direction du nord en partant de la c\u00f4te \u00e0 250 m\u00e8tre du rocher. Il est repr\u00e9sent\u00e9 par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-a71a9c5a105b672a1ae5440bfa10ade9_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#72;&#40;&#97;&#59;&#121;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"56\" style=\"vertical-align: -5px;\"\/><\/code> avec <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-0e55b0b3943237ccfc96979505679274_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"\/><\/code> fix\u00e9 et <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-38461fc041e953482219abf5d4cce1cb_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#121;\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: -4px;\"\/><\/code> variable.<br \/>\na. Quelle est la valeur de <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-0e55b0b3943237ccfc96979505679274_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#97;\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"9\" style=\"vertical-align: 0px;\"\/><\/code>?<br \/>\nb. A quelle distance de la c\u00f4te atteindra-t-il la trajectoire du bateau?<\/li>\n<li>Une femme nage en direction de l&#8217;est en partant du rocher.<br \/>\nElle est repr\u00e9sent\u00e9e par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-beaf1a4bf2aafc65901a0764ac2cb92f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#70;&#40;&#120;&#59;&#50;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"54\" style=\"vertical-align: -5px;\"\/><\/code>.<br \/>\nA quelle distance du rocher atteindra-t-elle la trajectoire du bateau?<\/li>\n<\/ol>\n<h2>Probl\u00e8me 2<\/h2>\n<p>Dans un rep\u00e8re orthonorm\u00e9 <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-40c372dd8f7e7897318aea41703c10a2_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#92;&#108;&#101;&#102;&#116;&#40;&#79;&#59;&#92;&#111;&#118;&#101;&#114;&#114;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#123;&#105;&#125;&#44;&#92;&#111;&#118;&#101;&#114;&#114;&#105;&#103;&#104;&#116;&#97;&#114;&#114;&#111;&#119;&#123;&#106;&#125;&#92;&#114;&#105;&#103;&#104;&#116;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"32\" width=\"81\" style=\"vertical-align: -11px;\"\/><\/code>, on consid\u00e8re le cercle de centre <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-97336a33dc0f361975c9602c171d99d4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#65;&#40;&#51;&#59;&#49;&#57;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"61\" style=\"vertical-align: -5px;\"\/><\/code> et de rayon 15.<\/p>\n<ol>\n<li>D\u00e9terminer, si elles existent les coordonn\u00e9es des points d&#8217;intersection de ce cercle et de la droite parall\u00e8le \u00e0 l&#8217;axe des ordonn\u00e9es passant par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-81bc18dc5d6e7166cf270dbdaa267c59_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#66;&#40;&#49;&#50;&#59;&#53;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"62\" style=\"vertical-align: -5px;\"\/><\/code>.<\/li>\n<li>D\u00e9terminer, si elles existent les coordonn\u00e9es des points d&#8217;intersection de ce cercle et de la droite parall\u00e8le \u00e0 l&#8217;axe des abscisses passant par le point <code class=\"katex-inline\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/courscaneri.ovh\/wp-content\/ql-cache\/quicklatex.com-75ba7322d5f7e69f27d0143beb95f38c_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"&#67;&#40;&#55;&#59;&#51;&#52;&#41;\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"62\" style=\"vertical-align: -5px;\"\/><\/code>.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>Probl\u00e8me 1 Le capitaine d&#8217;un bateau de tourisme veut montrer le littoral \u00e0 ses passagers. Cependant, un rocher est \u00e0 200m de la c\u00f4te. Il choisit donc de se placer toujours \u00e0 \u00e9quidistance du rocher et de la c\u00f4te. Pour mod\u00e9liser le probl\u00e8me, on se placera dans un rep\u00e8re orthonorm\u00e9 . Le rocher est repr\u00e9sent\u00e9 [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"parent":823,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-2370","page","type-page","status-publish","czr-hentry"],"_links":{"self":[{"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/pages\/2370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=2370"}],"version-history":[{"count":2,"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/pages\/2370\/revisions"}],"predecessor-version":[{"id":3941,"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/pages\/2370\/revisions\/3941"}],"up":[{"embeddable":true,"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=\/wp\/v2\/pages\/823"}],"wp:attachment":[{"href":"https:\/\/courscaneri.ovh\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=2370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}