{"id":30285,"date":"2025-12-29T11:22:36","date_gmt":"2025-12-29T04:22:36","guid":{"rendered":"https:\/\/xbookvn.com\/?post_type=lp_course&p=30285"},"modified":"2026-01-30T18:48:44","modified_gmt":"2026-01-30T11:48:44","slug":"toan-9-tap-2","status":"publish","type":"lp_course","link":"https:\/\/xbookvn.com\/de\/xbook\/toan-9-tap-2\/","title":{"rendered":"To\u00e1n 9 t\u1eadp 2"},"content":{"rendered":"
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xBook To\u00e1n 9 \u2013 T\u1eadp 2 (Math Studio)<\/h1>\n

Tr\u1ef1c Quan \u2013 T\u01b0\u01a1ng T\u00e1c \u2013 Luy\u1ec7n T\u01b0 Duy T\u1eeb B\u00e0i H\u1ecdc SGK<\/strong>
\n <\/header>\n

\n xBook To\u00e1n 9 \u2013 T\u1eadp 2<\/strong> l\u00e0 phi\u00ean b\u1ea3n m\u00f4 ph\u1ecfng t\u01b0\u01a1ng t\u00e1c d\u00e0nh ri\u00eang cho ch\u01b0\u01a1ng tr\u00ecnh To\u00e1n l\u1edbp 9 h\u1ecdc k\u1ef3 II,
\n n\u01a1i c\u00e1c ki\u1ebfn th\u1ee9c quan tr\u1ecdng \u0111\u01b0\u1ee3c chuy\u1ec3n th\u00e0nh m\u00f4 h\u00ecnh \u0111\u1ed9ng c\u00f3 th\u1ec3 ch\u1ea1m \u2013 k\u00e9o \u2013 thay \u0111\u1ed5i tham s\u1ed1 \u2013 quan s\u00e1t ngay k\u1ebft qu\u1ea3<\/strong>.
\n Thay v\u00ec ch\u1ec9 nh\u00ecn h\u00ecnh v\u1ebd t\u0129nh trong s\u00e1ch, h\u1ecdc sinh \u0111\u01b0\u1ee3c \u201cth\u1ea5y\u201d \u0111\u1ecbnh l\u00fd v\u1eadn h\u00e0nh<\/em> v\u00e0 t\u1ef1 kh\u00e1m ph\u00e1 quy lu\u1eadt qua thao t\u00e1c.\n <\/p>\n

\n M\u1ed7i b\u00e0i trong To\u00e1n 9 \u2013 T\u1eadp 2<\/strong> \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf nh\u01b0 m\u1ed9t \u201cph\u00f2ng th\u00ed nghi\u1ec7m mini\u201d:
\n l\u00e0m th\u1eed \u2013 sai th\u1eed \u2013 quan s\u00e1t \u2013 r\u00fat ra k\u1ebft lu\u1eadn<\/strong>.
\n Nh\u1edd \u0111\u00f3, h\u1ecdc sinh kh\u00f4ng ch\u1ec9 bi\u1ebft c\u00e1ch gi\u1ea3i, m\u00e0 hi\u1ec3u r\u00f5 v\u00ec sao<\/strong> ph\u1ea3i l\u00e0m nh\u01b0 v\u1eady.\n <\/p>\n

\u0110i\u1ec3m n\u1ed5i b\u1eadt c\u1ee7a xBook To\u00e1n 9 \u2013 T\u1eadp 2<\/h2>\n
    \n
  • \n B\u00e1m s\u00e1t SGK l\u1edbp 9 (H\u1ecdc k\u1ef3 II):<\/strong>
    \n m\u00f4 ph\u1ecfng \u0111\u01b0\u1ee3c x\u00e2y theo t\u1eebng b\u00e0i\/\u0111\u01a1n v\u1ecb ki\u1ebfn th\u1ee9c c\u1ee7a ch\u01b0\u01a1ng tr\u00ecnh, gi\u00fap h\u1ecdc sinh h\u1ecdc \u0111\u00fang \u2013 luy\u1ec7n \u0111\u00fang.\n <\/li>\n
  • \n H\u00ecnh h\u1ecdc \u201cs\u1ed1ng\u201d tr\u00ean m\u00e0n h\u00ecnh:<\/strong>
    \n k\u00e9o \u0111i\u1ec3m, thay \u0111\u1ed5i \u0111\u1ed9 d\u00e0i, g\u00f3c, v\u1ecb tr\u00ed\u2026 \u0111\u1ec3 th\u1ea5y t\u00ednh ch\u1ea5t v\u1eabn \u0111\u00fang \u2192 hi\u1ec3u s\u00e2u thay v\u00ec h\u1ecdc thu\u1ed9c.\n <\/li>\n
  • \n \u0110\u1ea1i s\u1ed1 \u2013 \u0111\u1ed3 th\u1ecb tr\u1ef1c quan:<\/strong>
    \n ch\u1ec9nh tham s\u1ed1, quan s\u00e1t \u0111\u1ed3 th\u1ecb\/gi\u00e1 tr\u1ecb thay \u0111\u1ed5i t\u1ee9c th\u00ec \u2192 n\u1eafm b\u1ea3n ch\u1ea5t bi\u1ebfn thi\u00ean v\u00e0 m\u1ed1i quan h\u1ec7 \u0111\u1ea1i l\u01b0\u1ee3ng.\n <\/li>\n
  • \n H\u1ecdc theo b\u01b0\u1edbc (Step 1 \u2192 Step 2 \u2192 Step 3):<\/strong>
    \n m\u1ed7i m\u00f4 ph\u1ecfng c\u00f3 l\u1ed9 tr\u00ecnh r\u00f5 r\u00e0ng, d\u1eabn d\u1eaft t\u01b0 duy t\u1eeb nh\u1eadn bi\u1ebft \u2192 kh\u00e1m ph\u00e1 \u2192 k\u1ebft lu\u1eadn.\n <\/li>\n
  • \n Ch\u1ebf \u0111\u1ed9 luy\u1ec7n t\u1eadp & th\u1eed th\u00e1ch:<\/strong>
    \n c\u00f3 b\u00e0i y\u00eau c\u1ea7u h\u1ecdc sinh t\u1ef1 thao t\u00e1c \u0111\u1ec3 \u0111\u1ea1t \u0111i\u1ec1u ki\u1ec7n\/\u0111\u00e1p \u00e1n \u2192 t\u1ea1o ph\u1ea3n x\u1ea1 v\u00e0 t\u0103ng \u0111\u1ed9 ch\u1eafc.\n <\/li>\n
  • \n H\u1ed7 tr\u1ee3 d\u1ea1y h\u1ecdc tr\u00ean l\u1edbp:<\/strong>
    \n gi\u00e1o vi\u00ean c\u00f3 th\u1ec3 b\u1eadt to\u00e0n m\u00e0n h\u00ecnh<\/em>, tr\u00ecnh chi\u1ebfu v\u00e0 thao t\u00e1c tr\u1ef1c ti\u1ebfp \u0111\u1ec3 minh h\u1ecda b\u00e0i gi\u1ea3ng sinh \u0111\u1ed9ng.\n <\/li>\n<\/ul>\n

    Ai n\u00ean s\u1eed d\u1ee5ng?<\/h2>\n\n\n\n\n\n\n\n\n
    \u0110\u1ed1i t\u01b0\u1ee3ng<\/th>\nL\u1ee3i \u00edch<\/th>\n<\/tr>\n<\/thead>\n
    H\u1ecdc sinh l\u1edbp 9<\/strong><\/td>\nHi\u1ec3u s\u00e2u ki\u1ebfn th\u1ee9c h\u1ecdc k\u1ef3 II, \u0111\u1eb7c bi\u1ec7t ph\u1ea7n h\u00ecnh h\u1ecdc v\u00e0 n\u1ed9i dung c\u1ea7n tr\u1ef1c quan \u0111\u1ec3 n\u1eafm ch\u1eafc.<\/td>\n<\/tr>\n
    H\u1ecdc sinh \u00f4n thi v\u00e0o 10<\/strong><\/td>\nNh\u00ecn ra b\u1ea3n ch\u1ea5t nhanh h\u01a1n, nh\u1edb l\u00e2u nh\u1edd thao t\u00e1c v\u00e0 quan s\u00e1t quy lu\u1eadt tr\u1ef1c ti\u1ebfp.<\/td>\n<\/tr>\n
    Gi\u00e1o vi\u00ean To\u00e1n<\/strong><\/td>\nMinh h\u1ecda b\u00e0i gi\u1ea3ng s\u1ed1ng \u0111\u1ed9ng, k\u00e9o \u2013 th\u1ea3 \u2013 bi\u1ebfn \u0111\u1ed5i ngay tr\u01b0\u1edbc l\u1edbp \u0111\u1ec3 h\u1ecdc sinh \u201c\u1ed3 l\u00ean v\u00ec hi\u1ec3u\u201d.<\/td>\n<\/tr>\n
    Ph\u1ee5 huynh h\u1ecdc c\u00f9ng con<\/strong><\/td>\nD\u1ec5 \u0111\u1ed3ng h\u00e0nh nh\u1edd m\u00f4 ph\u1ecfng r\u00f5 r\u00e0ng; kh\u00f4ng c\u1ea7n gi\u1ea3i th\u00edch d\u00e0i v\u1eabn gi\u00fap con t\u1ef1 r\u00fat k\u1ebft lu\u1eadn.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    V\u00ed d\u1ee5 m\u00f4 ph\u1ecfng ti\u00eau bi\u1ec3u (To\u00e1n 9 \u2013 T\u1eadp 2)<\/h2>\n

    \n \u0110\u01b0\u1eddng tr\u00f2n & h\u00ecnh h\u1ecdc li\u00ean quan:<\/strong>
    \n k\u00e9o \u0111i\u1ec3m tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n, quan s\u00e1t g\u00f3c \u2013 cung \u2013 d\u00e2y \u2013 ti\u1ebfp tuy\u1ebfn thay \u0111\u1ed5i nh\u01b0ng t\u00ednh ch\u1ea5t v\u1eabn gi\u1eef nguy\u00ean \u2192
    \n h\u1ecdc sinh t\u1ef1 \u201cnh\u00ecn th\u1ea5y\u201d \u0111\u1ecbnh l\u00fd.\n <\/p><\/blockquote>\n

    \n Quan h\u1ec7 t\u1ec9 l\u1ec7 \u2013 \u0111\u1ed3ng d\u1ea1ng:<\/strong>
    \n thay \u0111\u1ed5i v\u1ecb tr\u00ed \u0111i\u1ec3m, \u0111\u1ed9 d\u00e0i c\u1ea1nh, ki\u1ec3m tra t\u1ec9 s\u1ed1 v\u00e0 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed3ng d\u1ea1ng b\u1eb1ng m\u1eaft \u2192
    \n hi\u1ec3u nhanh v\u00e0 l\u00e0m b\u00e0i ch\u1ee9ng minh t\u1ef1 tin h\u01a1n.\n <\/p><\/blockquote>\n

    \n \u0110\u1ea1i s\u1ed1 \u2013 h\u00e0m s\u1ed1\/\u0111\u1ed3 th\u1ecb theo tham s\u1ed1:<\/strong>
    \n ch\u1ec9nh h\u1ec7 s\u1ed1, xem \u0111\u1ed3 th\u1ecb d\u1ecbch chuy\u1ec3n\/bi\u1ebfn d\u1ea1ng t\u1ee9c th\u00ec \u2192
    \n n\u1eafm b\u1ea3n ch\u1ea5t thay v\u00ec ch\u1ec9 ghi nh\u1edb c\u00f4ng th\u1ee9c.\n <\/p><\/blockquote>\n

    L\u1ee3i \u00edch nh\u1eadn \u0111\u01b0\u1ee3c<\/h2>\n
      \n
    • Hi\u1ec3u b\u1ea3n ch\u1ea5t ki\u1ebfn th\u1ee9c To\u00e1n 9 \u2013 T\u1eadp 2 thay v\u00ec h\u1ecdc thu\u1ed9c.<\/li>\n
    • T\u0103ng t\u01b0 duy h\u00ecnh h\u1ecdc v\u00e0 kh\u1ea3 n\u0103ng l\u1eadp lu\u1eadn, \u0111\u1eb7c bi\u1ec7t cho ph\u1ea7n ch\u1ee9ng minh.<\/li>\n
    • Nh\u00ecn r\u00f5 m\u1ed1i li\u00ean h\u1ec7 gi\u1eefa \u0111\u1ea1i l\u01b0\u1ee3ng, tham s\u1ed1 v\u00e0 k\u1ebft qu\u1ea3 \u2192 nh\u1edb l\u00e2u, l\u00e0m b\u00e0i ch\u1eafc.<\/li>\n
    • T\u1ea1o h\u1ee9ng th\u00fa h\u1ecdc To\u00e1n b\u1eb1ng tr\u1ea3i nghi\u1ec7m tr\u1ef1c quan, gi\u1ea3m \u00e1p l\u1ef1c khi \u00f4n thi.<\/li>\n<\/ul>\n

      K\u1ebft lu\u1eadn<\/h2>\n

      \n xBook To\u00e1n 9 \u2013 T\u1eadp 2<\/strong> mang To\u00e1n h\u1ecdc h\u1ecdc k\u1ef3 II tr\u1edf th\u00e0nh tr\u1ea3i nghi\u1ec7m tr\u1ef1c quan \u2013 \u0111\u1ed9ng \u2013 ch\u1ee7 \u0111\u1ed9ng<\/strong>.
      \n Khi h\u1ecdc sinh \u0111\u01b0\u1ee3c ch\u1ea1m v\u00e0o ki\u1ebfn th\u1ee9c<\/em>, c\u00e1c \u0111\u1ecbnh l\u00fd v\u00e0 quy lu\u1eadt kh\u00f4ng c\u00f2n \u201ckh\u00f3 nh\u1edb\u201d, m\u00e0 tr\u1edf n\u00ean r\u00f5 r\u00e0ng v\u00e0 \u0111\u1ea7y c\u1ea3m h\u1ee9ng.
      \n \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 s\u00e1ch To\u00e1n 9 \u2013 m\u00e0 l\u00e0 m\u1ed9t studio m\u00f4 ph\u1ecfng<\/strong> gi\u00fap h\u1ecdc ch\u1eafc \u0111\u1ec3 h\u1ecdc t\u1ed1t v\u00e0 \u00f4n thi hi\u1ec7u qu\u1ea3.\n <\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"

      xBook To\u00e1n 9 \u2013 T\u1eadp 2 (Math Studio) Tr\u1ef1c Quan \u2013 T\u01b0\u01a1ng T\u00e1c \u2013 Luy\u1ec7n T\u01b0 Duy T\u1eeb B\u00e0i H\u1ecdc SGK xBook To\u00e1n 9 \u2013 T\u1eadp 2 l\u00e0 phi\u00ean b\u1ea3n m\u00f4 ph\u1ecfng t\u01b0\u01a1ng t\u00e1c d\u00e0nh ri\u00eang cho ch\u01b0\u01a1ng tr\u00ecnh To\u00e1n … <\/p>","protected":false},"author":1,"featured_media":28581,"comment_status":"open","ping_status":"closed","template":"","course_category":[79,105,295],"course_tag":[89,331,104,330,302],"class_list":["post-30285","lp_course","type-lp_course","status-publish","has-post-thumbnail","hentry","course_category-sgk","course_category-toan","course_category-xbook","course_tag-sgk","course_tag-tap-2","course_tag-toan","course_tag-toan-9","course_tag-xbook","pmpro-has-access","course"],"_links":{"self":[{"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course\/30285","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course"}],"about":[{"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/types\/lp_course"}],"author":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/comments?post=30285"}],"version-history":[{"count":2,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course\/30285\/revisions"}],"predecessor-version":[{"id":30292,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course\/30285\/revisions\/30292"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/media\/28581"}],"wp:attachment":[{"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/media?parent=30285"}],"wp:term":[{"taxonomy":"course_category","embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/course_category?post=30285"},{"taxonomy":"course_tag","embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/course_tag?post=30285"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}