{"id":644,"date":"2026-03-25T15:38:01","date_gmt":"2026-03-25T08:38:01","guid":{"rendered":"https:\/\/rkk.ac.th\/wordpress\/?page_id=644"},"modified":"2026-03-25T15:39:24","modified_gmt":"2026-03-25T08:39:24","slug":"%e0%b8%aa%e0%b8%b7%e0%b9%88%e0%b8%ad%e0%b8%81%e0%b8%b2%e0%b8%a3%e0%b8%aa%e0%b8%ad%e0%b8%99-%e0%b8%84%e0%b8%93%e0%b8%b4%e0%b8%95%e0%b8%a8%e0%b8%b2%e0%b8%aa%e0%b8%95%e0%b8%a3%e0%b9%8c","status":"publish","type":"page","link":"https:\/\/rkk.ac.th\/wordpress\/?page_id=644","title":{"rendered":"\u0e2a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e2d\u0e19 : \u0e04\u0e13\u0e34\u0e15\u0e28\u0e32\u0e2a\u0e15\u0e23\u0e4c"},"content":{"rendered":"\n<hr class=\"wp-block-separator alignfull has-text-color has-border-normal-color has-alpha-channel-opacity has-border-normal-background-color has-background is-style-wide\"\/>\n\n\n\n<div class=\"wp-block-cover alignfull is-light\" style=\"padding-top:0;padding-right:0;padding-bottom:0;padding-left:0;min-height:50px;aspect-ratio:unset;\"><span aria-hidden=\"true\" class=\"wp-block-cover__background has-bg-secondary-background-color has-background-dim-20 has-background-dim\"><\/span><div class=\"wp-block-cover__inner-container is-layout-flow wp-block-cover-is-layout-flow\">\n<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\">\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-height\"><div class=\"vk_block-margin-md--height\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-query is-layout-flow wp-block-query-is-layout-flow\"><ul class=\"columns-3 vk_block-margin-0--margin-top wp-block-post-template is-layout-grid wp-container-core-post-template-is-layout-6d3fbd8f wp-block-post-template-is-layout-grid\"><li class=\"wp-block-post post-719 post type-post status-publish format-standard has-post-thumbnail hentry category-teching category-techingmath\">\n<figure style=\"aspect-ratio:16\/9; margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;\" class=\"wp-block-post-featured-image\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=719\" target=\"_self\"  ><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png\" class=\"has-border-color wp-post-image\" alt=\"Set operations\" style=\"border-color:#e5e5e5;border-width:1px;width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png 1920w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-300x169.png 300w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1024x576.png 1024w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-768x432.png 768w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n<h4 style=\"padding-right:0;padding-left:0;padding-top:0;padding-bottom:0;margin-bottom:0rem;\" class=\"wp-block-post-title has-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=719\" target=\"_self\" >Set operations<\/a><\/h4>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile has-small-font-size is-layout-flex wp-container-core-columns-is-layout-5f2652e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column has-bg-secondary-background-color has-background has-x-small-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:5px;padding-left:5px;flex-basis:7em\">\n<p class=\"has-text-align-center\">\u30ab\u30c6\u30b4\u30ea\u30fc<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><div style=\"text-decoration:none\" class=\"taxonomy-category wp-block-post-terms has-x-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=9\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e2d\u0e19<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=8\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e04\u0e13\u0e34\u0e15<\/a><\/div><\/div>\n<\/div>\n\n<\/li><li class=\"wp-block-post post-713 post type-post status-publish format-standard has-post-thumbnail hentry category-teching category-techingmath\">\n<figure style=\"aspect-ratio:16\/9; margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;\" class=\"wp-block-post-featured-image\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=713\" target=\"_self\"  ><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png\" class=\"has-border-color wp-post-image\" alt=\"\u0e40\u0e01\u0e21\u0e08\u0e31\u0e1a\u0e04\u0e39\u0e48\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e01\u0e31\u0e1a\u0e23\u0e39\u0e1b\u0e2a\u0e32\u0e21\u0e40\u0e2b\u0e25\u0e35\u0e48\u0e22\u0e21\u0e21\u0e38\u0e21\u0e09\u0e32\u0e01\" style=\"border-color:#e5e5e5;border-width:1px;width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png 1920w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-300x169.png 300w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1024x576.png 1024w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-768x432.png 768w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n<h4 style=\"padding-right:0;padding-left:0;padding-top:0;padding-bottom:0;margin-bottom:0rem;\" class=\"wp-block-post-title has-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=713\" target=\"_self\" >\u0e40\u0e01\u0e21\u0e08\u0e31\u0e1a\u0e04\u0e39\u0e48\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e01\u0e31\u0e1a\u0e23\u0e39\u0e1b\u0e2a\u0e32\u0e21\u0e40\u0e2b\u0e25\u0e35\u0e48\u0e22\u0e21\u0e21\u0e38\u0e21\u0e09\u0e32\u0e01<\/a><\/h4>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile has-small-font-size is-layout-flex wp-container-core-columns-is-layout-5f2652e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column has-bg-secondary-background-color has-background has-x-small-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:5px;padding-left:5px;flex-basis:7em\">\n<p class=\"has-text-align-center\">\u30ab\u30c6\u30b4\u30ea\u30fc<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><div style=\"text-decoration:none\" class=\"taxonomy-category wp-block-post-terms has-x-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=9\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e2d\u0e19<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=8\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e04\u0e13\u0e34\u0e15<\/a><\/div><\/div>\n<\/div>\n\n<\/li><li class=\"wp-block-post post-710 post type-post status-publish format-standard has-post-thumbnail hentry category-teching category-techingmath\">\n<figure style=\"aspect-ratio:16\/9; margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;\" class=\"wp-block-post-featured-image\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=710\" target=\"_self\"  ><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png\" class=\"has-border-color wp-post-image\" alt=\"\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e02\u0e2d\u0e07\u0e21\u0e38\u0e21 30 , 45 \u0e41\u0e25\u0e30 60\" style=\"border-color:#e5e5e5;border-width:1px;width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png 1920w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-300x169.png 300w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1024x576.png 1024w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-768x432.png 768w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n<h4 style=\"padding-right:0;padding-left:0;padding-top:0;padding-bottom:0;margin-bottom:0rem;\" class=\"wp-block-post-title has-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=710\" target=\"_self\" >\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e02\u0e2d\u0e07\u0e21\u0e38\u0e21 30 , 45 \u0e41\u0e25\u0e30 60<\/a><\/h4>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile has-small-font-size is-layout-flex wp-container-core-columns-is-layout-5f2652e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column has-bg-secondary-background-color has-background has-x-small-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:5px;padding-left:5px;flex-basis:7em\">\n<p class=\"has-text-align-center\">\u30ab\u30c6\u30b4\u30ea\u30fc<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><div style=\"text-decoration:none\" class=\"taxonomy-category wp-block-post-terms has-x-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=9\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e2d\u0e19<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=8\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e04\u0e13\u0e34\u0e15<\/a><\/div><\/div>\n<\/div>\n\n<\/li><li class=\"wp-block-post post-707 post type-post status-publish format-standard has-post-thumbnail hentry category-teching category-techingmath\">\n<figure style=\"aspect-ratio:16\/9; margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;\" class=\"wp-block-post-featured-image\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=707\" target=\"_self\"  ><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png\" class=\"has-border-color wp-post-image\" alt=\"\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e01\u0e31\u0e1a\u0e23\u0e39\u0e1b\u0e2a\u0e32\u0e21\u0e40\u0e2b\u0e25\u0e35\u0e48\u0e22\u0e21\u0e21\u0e38\u0e21\u0e09\u0e32\u0e01\" style=\"border-color:#e5e5e5;border-width:1px;width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png 1920w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-300x169.png 300w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1024x576.png 1024w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-768x432.png 768w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n<h4 style=\"padding-right:0;padding-left:0;padding-top:0;padding-bottom:0;margin-bottom:0rem;\" class=\"wp-block-post-title has-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=707\" target=\"_self\" >\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\u0e01\u0e31\u0e1a\u0e23\u0e39\u0e1b\u0e2a\u0e32\u0e21\u0e40\u0e2b\u0e25\u0e35\u0e48\u0e22\u0e21\u0e21\u0e38\u0e21\u0e09\u0e32\u0e01<\/a><\/h4>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile has-small-font-size is-layout-flex wp-container-core-columns-is-layout-5f2652e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column has-bg-secondary-background-color has-background has-x-small-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:5px;padding-left:5px;flex-basis:7em\">\n<p class=\"has-text-align-center\">\u30ab\u30c6\u30b4\u30ea\u30fc<\/p>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:70%\"><div style=\"text-decoration:none\" class=\"taxonomy-category wp-block-post-terms has-x-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=9\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e01\u0e32\u0e23\u0e2a\u0e2d\u0e19<\/a><span class=\"wp-block-post-terms__separator\">, <\/span><a href=\"https:\/\/rkk.ac.th\/wordpress\/?cat=8\" rel=\"tag\">\u0e2a\u0e37\u0e48\u0e2d\u0e04\u0e13\u0e34\u0e15<\/a><\/div><\/div>\n<\/div>\n\n<\/li><li class=\"wp-block-post post-700 post type-post status-publish format-standard has-post-thumbnail hentry category-teching category-techingmath\">\n<figure style=\"aspect-ratio:16\/9; margin-top:0;margin-right:0;margin-bottom:0;margin-left:0;\" class=\"wp-block-post-featured-image\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=700\" target=\"_self\"  ><img loading=\"lazy\" decoding=\"async\" width=\"1920\" height=\"1080\" src=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png\" class=\"has-border-color wp-post-image\" alt=\"\u0e01\u0e32\u0e23\u0e19\u0e33\u0e04\u0e27\u0e32\u0e21\u0e23\u0e39\u0e49\u0e44\u0e1b\u0e43\u0e0a\u0e49\u0e43\u0e19\u0e01\u0e32\u0e23\u0e41\u0e01\u0e49\u0e1b\u0e31\u0e0d\u0e2b\u0e32\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e01\u0e31\u0e1a\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34\" style=\"border-color:#e5e5e5;border-width:1px;width:100%;height:100%;object-fit:cover;\" srcset=\"https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math.png 1920w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-300x169.png 300w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1024x576.png 1024w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-768x432.png 768w, https:\/\/rkk.ac.th\/wordpress\/wp-content\/uploads\/2026\/03\/Math-1536x864.png 1536w\" sizes=\"auto, (max-width: 1920px) 100vw, 1920px\" \/><\/a><\/figure>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n<h4 style=\"padding-right:0;padding-left:0;padding-top:0;padding-bottom:0;margin-bottom:0rem;\" class=\"wp-block-post-title has-small-font-size\"><a href=\"https:\/\/rkk.ac.th\/wordpress\/?p=700\" target=\"_self\" >\u0e01\u0e32\u0e23\u0e19\u0e33\u0e04\u0e27\u0e32\u0e21\u0e23\u0e39\u0e49\u0e44\u0e1b\u0e43\u0e0a\u0e49\u0e43\u0e19\u0e01\u0e32\u0e23\u0e41\u0e01\u0e49\u0e1b\u0e31\u0e0d\u0e2b\u0e32\u0e40\u0e01\u0e35\u0e48\u0e22\u0e27\u0e01\u0e31\u0e1a\u0e2d\u0e31\u0e15\u0e23\u0e32\u0e2a\u0e48\u0e27\u0e19\u0e15\u0e23\u0e35\u0e42\u0e01\u0e13\u0e21\u0e34\u0e15\u0e34<\/a><\/h4>\n\n\n<div class=\"wp-block-vk-blocks-spacer vk_spacer vk_spacer-type-margin-top\"><div class=\"vk_block-margin-xs--margin-top\"><\/div><\/div>\n\n\n\n<div class=\"wp-block-columns is-not-stacked-on-mobile has-small-font-size is-layout-flex wp-container-core-columns-is-layout-5f2652e6 wp-block-columns-is-layout-flex\" style=\"margin-top:0;margin-bottom:0\">\n<div class=\"wp-block-column has-bg-secondary-background-color has-background has-x-small-font-size is-layout-flow wp-block-column-is-layout-flow\" style=\"padding-right:5px;padding-left:5px;flex-basis:7em\">\n<p 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