{"id":31585,"date":"2026-02-26T10:47:31","date_gmt":"2026-02-26T03:47:31","guid":{"rendered":"https:\/\/xbookvn.com\/?post_type=lp_course&p=31585"},"modified":"2026-02-26T10:47:31","modified_gmt":"2026-02-26T03:47:31","slug":"toan-8-tap-2","status":"publish","type":"lp_course","link":"https:\/\/xbookvn.com\/de\/xbook\/toan-8-tap-2\/","title":{"rendered":"To\u00e1n 8 T\u1eadp 2"},"content":{"rendered":"
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xBook To\u00e1n 8 \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 8 \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 8 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 ki\u1ebfn th\u1ee9c 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 8 \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 8 \u2013 T\u1eadp 2<\/h2>\n
    \n
  • \n B\u00e1m s\u00e1t SGK l\u1edbp 8 (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 Ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 bi\u1ebfn \u0111\u1ed5i \u0111\u1ea1i s\u1ed1:<\/strong>
    \n thay \u0111\u1ed5i h\u1ec7 s\u1ed1, ki\u1ec3m tra nghi\u1ec7m, quan s\u00e1t t\u1eebng b\u01b0\u1edbc bi\u1ebfn \u0111\u1ed5i \u0111\u1ec3 hi\u1ec3u b\u1ea3n ch\u1ea5t gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh.\n <\/li>\n
  • \n B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 \u1ee9ng d\u1ee5ng:<\/strong>
    \n thao t\u00e1c tr\u00ean tr\u1ee5c s\u1ed1, xem mi\u1ec1n nghi\u1ec7m thay \u0111\u1ed5i theo \u0111i\u1ec1u ki\u1ec7n \u2192 n\u1eafm r\u00f5 \u00fd ngh\u0129a h\u00ecnh h\u1ecdc c\u1ee7a nghi\u1ec7m.\n <\/li>\n
  • \n H\u00ecnh h\u1ecdc tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng:<\/strong>
    \n k\u00e9o c\u00e1c \u0111\u1ec9nh tam gi\u00e1c, thay \u0111\u1ed5i k\u00edch th\u01b0\u1edbc nh\u01b0ng gi\u1eef t\u1ec9 l\u1ec7 \u2192 quan s\u00e1t \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed3ng d\u1ea1ng m\u1ed9t c\u00e1ch tr\u1ef1c quan.\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<\/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 8<\/strong><\/td>\nHi\u1ec3u s\u00e2u ki\u1ebfn th\u1ee9c h\u1ecdc k\u1ef3 II, \u0111\u1eb7c bi\u1ec7t ph\u1ea7n ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 \u0111\u1ed3ng d\u1ea1ng tam gi\u00e1c.<\/td>\n<\/tr>\n
    H\u1ecdc sinh mu\u1ed1n n\u00e2ng cao t\u01b0 duy ch\u1ee9ng minh<\/strong><\/td>\nR\u00e8n luy\u1ec7n l\u1eadp lu\u1eadn ch\u1eb7t ch\u1ebd th\u00f4ng qua m\u00f4 ph\u1ecfng \u0111\u1ed3ng d\u1ea1ng v\u00e0 bi\u1ebfn \u0111\u1ed5i \u0111\u1ea1i s\u1ed1.<\/td>\n<\/tr>\n
    Gi\u00e1o vi\u00ean To\u00e1n<\/strong><\/td>\nMinh h\u1ecda tr\u1ef1c ti\u1ebfp qu\u00e1 tr\u00ecnh bi\u1ebfn \u0111\u1ed5i v\u00e0 ch\u1ee9ng minh \u0111\u1ec3 h\u1ecdc sinh d\u1ec5 h\u00ecnh dung.<\/td>\n<\/tr>\n
    Ph\u1ee5 huynh h\u1ecdc c\u00f9ng con<\/strong><\/td>\nD\u1ec5 h\u1ed7 tr\u1ee3 con nh\u1edd h\u00ecnh \u1ea3nh v\u00e0 thao t\u00e1c r\u00f5 r\u00e0ng, kh\u00f4ng c\u1ea7n di\u1ec5n gi\u1ea3i ph\u1ee9c t\u1ea1p.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    V\u00ed d\u1ee5 m\u00f4 ph\u1ecfng ti\u00eau bi\u1ec3u (To\u00e1n 8 \u2013 T\u1eadp 2)<\/h2>\n

    \n Gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh b\u1eadc nh\u1ea5t m\u1ed9t \u1ea9n:<\/strong>
    \n thay \u0111\u1ed5i h\u1ec7 s\u1ed1, theo d\u00f5i t\u1eebng b\u01b0\u1edbc chuy\u1ec3n v\u1ebf \u2013 \u0111\u1ed5i d\u1ea5u \u2192
    \n h\u1ecdc sinh hi\u1ec3u v\u00ec sao nghi\u1ec7m thay \u0111\u1ed5i khi h\u1ec7 s\u1ed1 thay \u0111\u1ed5i.\n <\/p><\/blockquote>\n

    \n B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh tr\u00ean tr\u1ee5c s\u1ed1:<\/strong>
    \n \u0111i\u1ec1u ch\u1ec9nh \u0111i\u1ec1u ki\u1ec7n, quan s\u00e1t mi\u1ec1n nghi\u1ec7m m\u1edf r\u1ed9ng ho\u1eb7c thu h\u1eb9p \u2192
    \n n\u1eafm ch\u1eafc \u00fd ngh\u0129a \u201cl\u1edbn h\u01a1n\u201d, \u201cnh\u1ecf h\u01a1n\u201d m\u1ed9t c\u00e1ch tr\u1ef1c quan.\n <\/p><\/blockquote>\n

    \n Tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng:<\/strong>
    \n k\u00e9o gi\u00e3n tam gi\u00e1c, ki\u1ec3m tra t\u1ec9 s\u1ed1 c\u1ea1nh v\u00e0 g\u00f3c t\u01b0\u01a1ng \u1ee9ng \u2192
    \n th\u1ea5y r\u00f5 \u0111i\u1ec1u ki\u1ec7n \u0111\u1ed3ng d\u1ea1ng thay v\u00ec ghi nh\u1edb m\u00e1y m\u00f3c.\n <\/p><\/blockquote>\n

    L\u1ee3i \u00edch nh\u1eadn \u0111\u01b0\u1ee3c<\/h2>\n
      \n
    • Hi\u1ec3u b\u1ea3n ch\u1ea5t gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh.<\/li>\n
    • T\u0103ng kh\u1ea3 n\u0103ng l\u1eadp lu\u1eadn h\u00ecnh h\u1ecdc, \u0111\u1eb7c bi\u1ec7t ph\u1ea7n tam gi\u00e1c \u0111\u1ed3ng d\u1ea1ng.<\/li>\n
    • Nh\u00ecn r\u00f5 m\u1ed1i quan h\u1ec7 gi\u1eefa \u0111\u1ea1i l\u01b0\u1ee3ng v\u00e0 \u0111i\u1ec1u ki\u1ec7n nghi\u1ec7m.<\/li>\n
    • T\u1ea1o h\u1ee9ng th\u00fa h\u1ecdc To\u00e1n nh\u1edd thao t\u00e1c tr\u1ef1c ti\u1ebfp v\u00e0 ph\u1ea3n h\u1ed3i t\u1ee9c th\u00ec.<\/li>\n<\/ul>\n

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

      \n xBook To\u00e1n 8 \u2013 T\u1eadp 2<\/strong> bi\u1ebfn c\u00e1c n\u1ed9i dung h\u1ecdc k\u1ef3 II 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 t\u1ef1 thao t\u00e1c v\u00e0 quan s\u00e1t<\/em>, ph\u01b0\u01a1ng tr\u00ecnh v\u00e0 \u0111\u1ed3ng d\u1ea1ng kh\u00f4ng c\u00f2n tr\u1eebu t\u01b0\u1ee3ng,
      \n m\u00e0 tr\u1edf n\u00ean r\u00f5 r\u00e0ng v\u00e0 d\u1ec5 ghi nh\u1edb.
      \n \u0110\u00e2y kh\u00f4ng ch\u1ec9 l\u00e0 s\u00e1ch To\u00e1n 8 \u2013 m\u00e0 l\u00e0 m\u1ed9t studio m\u00f4 ph\u1ecfng<\/strong> gi\u00fap h\u1ecdc ch\u1eafc v\u00e0 t\u1ef1 tin h\u01a1n trong c\u00e1c b\u00e0i ki\u1ec3m tra.\n <\/p>\n<\/section>","protected":false},"excerpt":{"rendered":"

      xBook To\u00e1n 8 \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 8 \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":31586,"comment_status":"open","ping_status":"closed","template":"","course_category":[79,105,295],"course_tag":[89,331,104,330,302],"class_list":["post-31585","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\/31585","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=31585"}],"version-history":[{"count":1,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course\/31585\/revisions"}],"predecessor-version":[{"id":31587,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/lp_course\/31585\/revisions\/31587"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/media\/31586"}],"wp:attachment":[{"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/media?parent=31585"}],"wp:term":[{"taxonomy":"course_category","embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/course_category?post=31585"},{"taxonomy":"course_tag","embeddable":true,"href":"https:\/\/xbookvn.com\/de\/wp-json\/wp\/v2\/course_tag?post=31585"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}