{"id":4821,"date":"2025-09-05T10:00:36","date_gmt":"2025-09-05T01:00:36","guid":{"rendered":"https:\/\/winroadrikeijyuku.com\/oita\/?p=4821"},"modified":"2025-08-27T17:36:40","modified_gmt":"2025-08-27T08:36:40","slug":"%e6%95%b4%e6%95%b0%e5%95%8f%e9%a1%8c%e3%81%9d%e3%81%ae%ef%bc%94-%e4%ba%ac%e9%83%bd%e5%a4%a72018-%e5%a4%a7%e5%88%86%e5%b8%82-%e5%a4%a7%e5%ad%a6%e5%8f%97%e9%a8%93-%e6%95%b0%e5%ad%a6-%e5%a1%be","status":"publish","type":"post","link":"https:\/\/winroadrikeijyuku.com\/oita\/2025\/09\/05\/%e6%95%b4%e6%95%b0%e5%95%8f%e9%a1%8c%e3%81%9d%e3%81%ae%ef%bc%94-%e4%ba%ac%e9%83%bd%e5%a4%a72018-%e5%a4%a7%e5%88%86%e5%b8%82-%e5%a4%a7%e5%ad%a6%e5%8f%97%e9%a8%93-%e6%95%b0%e5%ad%a6-%e5%a1%be\/","title":{"rendered":"\u6574\u6570\u554f\u984c\u305d\u306e\uff14 \u4eac\u90fd\u5927(2018) | \u5927\u5206\u5e02 \u5927\u5b66\u53d7\u9a13 \u6570\u5b66 \u587e | \u5927\u5206\u7406\u7cfb\u5c02\u9580\u587eWINROAD"},"content":{"rendered":"

\u554f\u984c<\/p>\n

\u200b\\( n^3-7n+9 \\)<\/span>\u200b\u304c\u7d20\u6570\u3068\u306a\u308b\u3088\u3046\u306a\u6574\u6570n\u3092\u5168\u3066\u6c42\u3081\u3088\u3002\u3000(2018\u4eac\u90fd\u5927)<\/p>\n

\n

\u3055\u3066\u3001\u3069\u3053\u304b\u3089\u624b\u3092\u3064\u3051\u3066\u3044\u304f\u304b\u7686\u76ee\u898b\u5f53\u304c\u3064\u304b\u306a\u3044\u3068\u304d\u306f\u3001\u3044\u3064\u3082\u306e\u3088\u3046\u306b<\/p>\n

\u5b9f\u969b\u306b\u5024\u3092\u5165\u308c\u3066\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u304b\u8abf\u3079\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u3088\u3046<\/p>\n

\u200b\\( n=1 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 1^3-7\\cdot1+9=3 \\)<\/span>\u200b\u3067\u7d20\u6570<\/p>\n

\u200b\\( n=2 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 2^3-7\\cdot2+9=3 \\)<\/span>\u200b\u3067\u7d20\u6570<\/p>\n

\u200b\\( n=3 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 3^3-7\\cdot3+9=15 \\)<\/span>\u200b\u3067\u7d20\u6570\u3068\u306f\u306a\u3089\u306a\u3044<\/p>\n

\u200b\\( n=4 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 4^3-7\\cdot4+9=45 \\)<\/span>\u200b\u3067\u7d20\u6570\u3068\u306f\u306a\u3089\u306a\u3044<\/p>\n

\u200b\\( n=5 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 5^3-7\\cdot5+9=99 \\)<\/span>\u200b\u3067\u7d20\u6570\u3068\u306f\u306a\u3089\u306a\u3044<\/p>\n

\u200b\\( n=6 \\)<\/span>\u200b\u306e\u3068\u304d\u200b\\( 6^3-7\\cdot6+9=183 \\)<\/span>\u200b\u3067\u7d20\u6570\u3068\u306f\u306a\u3089\u306a\u3044<\/p>\n

\u3053\u308c\u3092\u898b\u308b\u3068\u3069\u3046\u3084\u3089\u5168\u3066\uff13\u306e\u500d\u6570\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u3060<\/p>\n

\u3064\u307e\u308a\u7d20\u6570\u3067\u3042\u308b\u306a\u3089\u3070\uff13\u3057\u304b\u306a\u3044\u3068\u601d\u308f\u308c\u308b\u3002<\/p>\n

\n

\u2460\u200b\\( n\\equiv0(mod3) \\)<\/span>\u200b\u306e\u3068\u304d<\/p>\n

\u200b\\( n^3-7n+9\\equiv0-0+0\\equiv0(mod3) \\)<\/span>\u200b<\/p>\n

\u2461\u200b\\( n\\equiv1(mod3) \\)<\/span>\u200b\u306e\u3068\u304d<\/p>\n

\u200b\\( n^3-7n+9\\equiv1-1+0\\equiv0(mod3) \\)<\/span>\u200b<\/p>\n

\u2462\\( n\\equiv2(mod3) \\)<\/span>\u200b\u306e\u3068\u304d<\/p>\n

\u200b\\( n^3-7n+9\\equiv2-2+0\\equiv0(mod3) \\)<\/span>\u200b<\/p>\n

\u2460\u3001\u2461\u3001\u2462\u3088\u308a<\/p>\n

\u200b\\( n^3-7n+9 \\)<\/span>\u200b\u306f\uff13\u306e\u500d\u6570\u3067\u3042\u308b\u306e\u3067\u7d20\u6570\u3067\u3042\u308b\u305f\u3081\u306b\u306f\uff13\u306e\u307f<\/p>\n

\u200b\\( n^3-7n+9=3 \\)<\/span>\u200b\u3068\u304a\u304f\u3068<\/p>\n

\u200b\\( n^3-7n+6=0 \\)<\/span>\u200b\u56e0\u6570\u5206\u89e3\u3059\u308b\u3068<\/p>\n

\u200b\\( (n-1)(n-2)(n+3)=0 \\)<\/span>\u200b<\/p>\n

\u3088\u3063\u3066\u200b\\( n=-3\u30011\u30012 \\)<\/span>\u200b\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n

 <\/p>\n

 <\/p>\n

\uff08\u5927\u5206\u7406\u7cfb\u5c02\u9580\u587eWINROAD <\/span>\u9996\u85e4\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"

\u554f\u984c \u200b\\( n^3-7n+9 \\)\u200b\u304c\u7d20\u6570\u3068\u306a\u308b\u3088\u3046\u306a\u6574\u6570n\u3092\u5168\u3066\u6c42\u3081\u3088\u3002\u3000(2018\u4eac\u90fd\u5927) \u3055\u3066\u3001\u3069\u3053\u304b\u3089\u624b\u3092\u3064\u3051\u3066\u3044\u304f\u304b\u7686\u76ee\u898b\u5f53\u304c\u3064\u304b\u306a\u3044\u3068\u304d\u306f\u3001\u3044\u3064\u3082\u306e\u3088\u3046\u306b \u5b9f\u969b\u306b\u5024\u3092\u5165\u308c\u3066\u3069\u306e\u3088\u3046\u306b\u306a\u308b\u306e\u304b\u8abf\u3079\u3066\u307f\u308b\u3053\u3068\u306b<\/p>\n

\u7d9a\u304d\u3092\u8aad\u3080<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"vkexunit_cta_each_option":"","footnotes":""},"categories":[1],"tags":[],"class_list":["post-4821","post","type-post","status-publish","format-standard","hentry","category-1"],"_links":{"self":[{"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/posts\/4821","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/comments?post=4821"}],"version-history":[{"count":4,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/posts\/4821\/revisions"}],"predecessor-version":[{"id":4825,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/posts\/4821\/revisions\/4825"}],"wp:attachment":[{"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/media?parent=4821"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/categories?post=4821"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/winroadrikeijyuku.com\/oita\/wp-json\/wp\/v2\/tags?post=4821"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}