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{"id":24941,"date":"2023-04-10T14:55:11","date_gmt":"2023-04-10T13:55:11","guid":{"rendered":"https:\/\/www.acasinhadamatematica.pt\/?p=24941"},"modified":"2023-04-10T16:02:43","modified_gmt":"2023-04-10T15:02:43","slug":"procura-de-propriedades-dos-numeros","status":"publish","type":"post","link":"https:\/\/www.acasinhadamatematica.pt\/?p=24941","title":{"rendered":"Procura de propriedades dos n\u00fameros"},"content":{"rendered":"\n<p><ul id='GTTabs_ul_24941' class='GTTabs' style='display:none'>\n<li id='GTTabs_li_0_24941' class='GTTabs_curr'><a  id=\"24941_0\" onMouseOver=\"GTTabsShowLinks('Enunciado'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Enunciado<\/a><\/li>\n<li id='GTTabs_li_1_24941' ><a  id=\"24941_1\" onMouseOver=\"GTTabsShowLinks('Resolu\u00e7\u00e3o'); return true;\"  onMouseOut=\"GTTabsShowLinks();\"  class='GTTabsLinks'>Resolu\u00e7\u00e3o<\/a><\/li>\n<\/ul>\n\n<div class='GTTabs_divs GTTabs_curr_div' id='GTTabs_0_24941'>\n<span class='GTTabs_titles'><b>Enunciado<\/b><\/span><\/p>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"24942\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=24942\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\" data-orig-size=\"531,423\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag153-5\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\" class=\"alignright wp-image-24942\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5-300x239.png\" alt=\"\" width=\"400\" height=\"319\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5-300x239.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png 531w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a>Numa aula de Matem\u00e1tica, a turma do C\u00e9sar envolveu-se na procura de propriedades de n\u00fameros.<\/p>\n<p>A certa altura o C\u00e9sar afirmou:<\/p>\n<ol>\n<li>Escolhe dois n\u00fameros naturais consecutivos e verifica que, para esses n\u00fameros, a afirma\u00e7\u00e3o do C\u00e9sar \u00e9 verdadeira.<\/li>\n<li>Designando por <em>n<\/em> um n\u00famero natural, mostra que \\({\\left( {n + 1} \\right)^2} &#8211; {n^2}\\) \u00e9 sempre um n\u00famero que n\u00e3o \u00e9 m\u00faltiplo de dois.<\/li>\n<\/ol>\n<p><div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_next'><a href='#GTTabs_ul_24941' onClick='GTTabs_show(1,24941)'>Resolu\u00e7\u00e3o &gt;&gt;<\/a><\/span><\/div><\/div>\n\n<div class='GTTabs_divs' id='GTTabs_1_24941'>\n<span class='GTTabs_titles'><b>Resolu\u00e7\u00e3o<\/b><\/span><!--more--><\/p>\n<blockquote>\n<p><a href=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\"><img loading=\"lazy\" decoding=\"async\" data-attachment-id=\"24942\" data-permalink=\"https:\/\/www.acasinhadamatematica.pt\/?attachment_id=24942\" data-orig-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\" data-orig-size=\"531,423\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;0&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;0&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;0&quot;,&quot;iso&quot;:&quot;0&quot;,&quot;shutter_speed&quot;:&quot;0&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;0&quot;}\" data-image-title=\"8_Pag153-5\" data-image-description=\"\" data-image-caption=\"\" data-large-file=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png\" class=\"alignright wp-image-24942\" src=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5-300x239.png\" alt=\"\" width=\"400\" height=\"319\" srcset=\"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5-300x239.png 300w, https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5.png 531w\" sizes=\"auto, (max-width: 400px) 100vw, 400px\" \/><\/a>Numa aula de Matem\u00e1tica, a turma do C\u00e9sar envolveu-se na procura de propriedades de n\u00fameros.<\/p>\n<p>A certa altura o C\u00e9sar afirmou:<\/p>\n<\/blockquote>\n<ol>\n<li>\n<blockquote>Escolhe dois n\u00fameros naturais consecutivos e verifica que, para esses n\u00fameros, a afirma\u00e7\u00e3o do C\u00e9sar \u00e9 verdadeira.<\/blockquote>\n<\/li>\n<li>\n<blockquote>Designando por <em>n<\/em> um n\u00famero natural, mostra que \\({\\left( {n + 1} \\right)^2} &#8211; {n^2}\\) \u00e9 sempre um n\u00famero que n\u00e3o \u00e9 m\u00faltiplo de dois.<\/blockquote>\n<\/li>\n<\/ol>\n<p>\u00a0<\/p>\n<ol>\n<li>Sejam 10 e 11 os dois n\u00fameros naturais consecutivos escolhidos.<br \/>Ora, \\({11^2} &#8211; {10^2} = 121 &#8211; 100 = 21\\), pelo que se verifica a afirma\u00e7\u00e3o do C\u00e9sar neste caso particular.<br \/><br \/><\/li>\n<li>Seja <em>n<\/em> um n\u00famero natural.<br \/>Ora,<br \/>\\[\\begin{array}{*{20}{l}}{{{\\left( {n + 1} \\right)}^2} &#8211; {n^2}}&amp; = &amp;{{n^2} + 2n + 1 &#8211; {n^2}}\\\\{}&amp; = &amp;{2n + 1}\\end{array}\\]<br \/>Logo, \\({\\left( {n + 1} \\right)^2} &#8211; {n^2}\\) \u00e9 sempre um n\u00famero que n\u00e3o \u00e9 m\u00faltiplo de dois, pois \\({2n + 1}\\) designa um n\u00famero \u00edmpar para todo o <em>n<\/em> natural.<\/li>\n<\/ol>\n<div class='GTTabsNavigation' style='display:none'><span class='GTTabs_nav_prev'><a href='#GTTabs_ul_24941' onClick='GTTabs_show(0,24941)'>&lt;&lt; Enunciado<\/a><\/span><\/div><\/div>\n\n","protected":false},"excerpt":{"rendered":"<p>Enunciado Resolu\u00e7\u00e3o Enunciado Numa aula de Matem\u00e1tica, a turma do C\u00e9sar envolveu-se na procura de propriedades de n\u00fameros. A certa altura o C\u00e9sar afirmou: Escolhe dois n\u00fameros naturais consecutivos e verifica que, para esses&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":24943,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[100,97,700],"tags":[424,196],"series":[],"class_list":["post-24941","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-8--ano","category-aplicando","category-monomios-e-polinomios","tag-8-o-ano","tag-casos-notaveis"],"views":101,"jetpack_featured_media_url":"https:\/\/www.acasinhadamatematica.pt\/wp-content\/uploads\/2023\/04\/8_Pag153-5_520x245.png","jetpack_sharing_enabled":true,"jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/24941","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=24941"}],"version-history":[{"count":0,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/posts\/24941\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=\/wp\/v2\/media\/24943"}],"wp:attachment":[{"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=24941"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=24941"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=24941"},{"taxonomy":"series","embeddable":true,"href":"https:\/\/www.acasinhadamatematica.pt\/index.php?rest_route=%2Fwp%2Fv2%2Fseries&post=24941"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}