{"id":28,"date":"2023-07-05T12:56:34","date_gmt":"2023-07-05T10:56:34","guid":{"rendered":"https:\/\/blogy.rvp.cz\/photomath\/?p=28"},"modified":"2023-08-04T19:31:32","modified_gmt":"2023-08-04T17:31:32","slug":"vi-pouzivani-photomath-v-hodine-podminky-resitelnosti-nulou-delit-nelze","status":"publish","type":"post","link":"https:\/\/blogy.rvp.cz\/photomath\/2023\/07\/05\/vi-pouzivani-photomath-v-hodine-podminky-resitelnosti-nulou-delit-nelze\/","title":{"rendered":"VI.\tPou\u017e\u00edv\u00e1n\u00ed photomath v hodin\u011b: podm\u00ednky \u0159e\u0161itelnosti, nulou d\u011blit nelze"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Aneb lomen\u00e9 v\u00fdrazy a \u00fapravy v\u00fdraz\u016f, vylou\u010den\u00e9 hodnoty s Photomathem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">M\u016f\u017eete si pustit n\u00e1sleduj\u00edc\u00ed video, nebo do\u010d\u00edst tento \u010dl\u00e1nek. <\/p>\n\n\n\n<figure class=\"wp-block-embed-youtube wp-block-embed is-type-video is-provider-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Photomath 6. d\u00edl: Podm\u00ednky \u0159e\u0161itelnosti, nulou d\u011blit nelze\" width=\"800\" height=\"600\" src=\"https:\/\/www.youtube.com\/embed\/Zjk-kCAJrVI?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">I p\u0159esto, \u017ee lomen\u00e9 v\u00fdrazy nejsou povinn\u011b v\u00a0RVP Z\u0160, pod\u00edvejme se spole\u010dn\u011b na podm\u00ednky v\u00fdraz\u016f v\u00a0aplikaci Photomath.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"> To, \u017ee nulou d\u011blit nelze, m\u016f\u017eeme \u017e\u00e1k\u016fm snadno dok\u00e1zat nap\u0159\u00edklad u zlomk\u016f. \u017d\u00e1ci maj\u00ed definovan\u00e9ho jmenovatele jako p\u0159irozen\u00e9 \u010d\u00edslo. Tedy jmenovatel nen\u00ed nulov\u00fd. Ostatn\u011b, jak by \u0161el dort rozd\u011blit na nula d\u00edl\u016f? <br>S\u00a0d\u011blitelnost\u00ed nulou se setk\u00e1v\u00e1me rovn\u011b\u017e i u rovnic, kter\u00e9 nemaj\u00ed \u0159e\u0161en\u00ed, nap\u0159.\u00a0<em>0x = 8<\/em>. Nulou d\u011blit nelze, a nav\u00edc nula kr\u00e1t cokoli je st\u00e1le nula. <br>A pr\u00e1v\u011b to, \u017ee nulou d\u011blit opravdu nelze, je st\u011b\u017eejn\u00ed v\u00a0r\u00e1mci lomen\u00fdch v\u00fdraz\u016f.<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"775\" height=\"539\" src=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek14.png\" alt=\"Obsah obr\u00e1zku text\n\nPopis byl vytvo\u0159en automaticky\" class=\"wp-image-29\" srcset=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek14.png 775w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek14-300x209.png 300w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek14-768x534.png 768w\" sizes=\"auto, (max-width: 775px) 100vw, 775px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Existuj\u00ed p\u0159\u00edklady krom\u011b slovn\u00edch \u00faloh, kter\u00e9 v\u00e1m <strong>aplikace Photomath nevypo\u010dte, nevy\u0159e\u0161\u00ed. <\/strong>Photomath v\u00e1m sd\u011bl\u00ed \u201enezda\u0159ilo se n\u00e1m rozpoznat va\u0161i \u00falohu\u201c, jak ukazuje n\u00e1sleduj\u00edc\u00ed obr\u00e1zek. Je to proto, \u017ee aplikace neum\u00ed \u201ep\u0159e\u010d\u00edst\u201c symbol\u00a0<em><strong>nerovn\u00e1 se<\/strong><\/em>\u00a0neboli <strong>p\u0159e\u0161krtnut\u00e9\u00a0<em>rovn\u00e1 se<\/em><\/strong>.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"518\" height=\"493\" src=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek15.png\" alt=\"Obsah obr\u00e1zku text\n\nPopis byl vytvo\u0159en automaticky\" class=\"wp-image-30\" srcset=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek15.png 518w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek15-300x286.png 300w\" sizes=\"auto, (max-width: 518px) 100vw, 518px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u00a0t\u00edm se poj\u00ed pr\u00e1v\u011b podm\u00ednky \u0159e\u0161itelnosti. Dejte \u017e\u00e1k\u016fm lomen\u00fd v\u00fdraz, a\u0165 ur\u010d\u00ed jeho podm\u00ednky a ov\u011b\u0159\u00ed si spr\u00e1vnost \u0159e\u0161en\u00ed s\u00a0aplikac\u00ed. Photomath jim poskytne odpov\u011b\u010f, ale jinak sd\u011blenou, ne\u017e by \u010dekali. <br>Objev\u00ed se <strong>\u201enajd\u011bte vylou\u010den\u00e9 hodnoty\u201c<\/strong> \u2013 sice s\u00a0postupem, ale na konci je nap\u0159.\u00a0<em>a = &#8211; 3<\/em>, jak ukazuje n\u00e1sleduj\u00edc\u00ed fotografie z\u00a0aplikace Photomath. Podstatn\u00e9 je, aby \u017e\u00e1ci porozum\u011bli odpov\u011bdi, kterou jim aplikace poskytuje. Aby pochopili, \u017ee aplikace hledala vylou\u010den\u00e9 hodnoty a \u017ee to jsou hodnoty pr\u00e1v\u011b tyto neboli tato hodnota pro nezn\u00e1mou \u201ea\u201c se rovn\u00e1 -3. A aby pochopili, \u017ee my jsme cht\u011bli podm\u00ednky, kdy se v\u00fdraz nerovn\u00e1 nule. Tedy pokud maj\u00ed v\u00a0se\u0161it\u011b naps\u00e1no &#8222;<em>a\u00a0se nesm\u00ed rovnat\u00a0-3<\/em>&#8222;, maj\u00ed odpov\u011b\u010f spr\u00e1vnou.\u00a0<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"759\" height=\"1024\" src=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek16-759x1024.png\" alt=\"\" class=\"wp-image-31\" srcset=\"https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek16-759x1024.png 759w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek16-222x300.png 222w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek16-768x1036.png 768w, https:\/\/blogy.rvp.cz\/photomath\/files\/2023\/04\/Obr\u00e1zek16.png 943w\" sizes=\"auto, (max-width: 759px) 100vw, 759px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Tento rozd\u00edl shled\u00e1v\u00e1m pozitivn\u00edm, nebo\u0165 je zde nutnost pochopen\u00ed podstaty dan\u00e9ho zad\u00e1n\u00ed. Je zde pot\u0159eba kritick\u00e9ho my\u0161len\u00ed a op\u011btovn\u00e9ho zkontrolov\u00e1n\u00ed vlastn\u00edho postupu. A pr\u00e1v\u011b kritick\u00e9 zhodnocen\u00ed p\u0159\u00ednosu, respektive i samotn\u00e9ho postupu a v\u00fdsledku aplikac\u00ed Photomath, je d\u016fle\u017eit\u00e1 digit\u00e1ln\u00ed kompetence. <br>(Tento konkr\u00e9tn\u00ed p\u0159\u00edklad obsahuje i dal\u0161\u00ed digit\u00e1ln\u00ed kompetence: vyu\u017eit\u00ed a zapojen\u00ed, efektivitu a inovace a p\u0159edev\u0161\u00edm zm\u00edn\u011bn\u00fd p\u0159\u00ednos a v\u00fdvoj).\u00a0\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">P\u0159eji hezk\u00fd den, Kate\u0159ina<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Aneb lomen\u00e9 v\u00fdrazy a \u00fapravy v\u00fdraz\u016f, vylou\u010den\u00e9 hodnoty s Photomathem. M\u016f\u017eete si pustit n\u00e1sleduj\u00edc\u00ed video, nebo do\u010d\u00edst tento \u010dl\u00e1nek. I p\u0159esto, \u017ee lomen\u00e9 v\u00fdrazy nejsou povinn\u011b v\u00a0RVP Z\u0160, pod\u00edvejme se spole\u010dn\u011b na podm\u00ednky v\u00fdraz\u016f v\u00a0aplikaci Photomath. To, \u017ee nulou d\u011blit nelze, m\u016f\u017eeme \u017e\u00e1k\u016fm snadno dok\u00e1zat nap\u0159\u00edklad u zlomk\u016f. \u017d\u00e1ci maj\u00ed definovan\u00e9ho jmenovatele jako p\u0159irozen\u00e9 \u010d\u00edslo. [&hellip;]<\/p>\n","protected":false},"author":8626,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3,4,2],"class_list":["post-28","post","type-post","status-publish","format-standard","hentry","category-nezarazene","tag-digitalni-kompetence","tag-matematika","tag-photomath"],"_links":{"self":[{"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/posts\/28","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/users\/8626"}],"replies":[{"embeddable":true,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/comments?post=28"}],"version-history":[{"count":5,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/posts\/28\/revisions"}],"predecessor-version":[{"id":110,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/posts\/28\/revisions\/110"}],"wp:attachment":[{"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/media?parent=28"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/categories?post=28"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blogy.rvp.cz\/photomath\/wp-json\/wp\/v2\/tags?post=28"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}