\n
\u0110\u1ec0 CH\u00cdNH TH\u1ee8C<\/b><\/p>\n<\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u00a0M\u00f4n thi : To\u00e1n.<\/p>\n
Th\u1eddi gian l\u00e0m b\u00e0i : 120 ph\u00fat, kh\u00f4ng k\u1ec3 th\u1eddi gian giao \u0111\u1ec1.
\n<\/i><\/p>\n
C\u00e2u 1<\/b> (2,5 \u0111i\u1ec3m).<\/p>\n
Cho bi\u1ec3u th\u1ee9c<\/p>\n
a) T\u00ecm \u0111i\u1ec1u ki\u1ec7n x\u00e1c \u0111\u1ecbnh v\u00e0 r\u00fat g\u1ecdn bi\u1ec3u th\u1ee9c P.<\/p>\n
b) T\u00ednh gi\u00e1 tr\u1ecb c\u1ee7a bi\u1ec3u th\u1ee9c P khi .<\/p>\n
C\u00e2u 2<\/b> (1,5 \u0111i\u1ec3m).<\/p>\n
S\u1ed1 ti\u1ec1n mua 1 qu\u1ea3 d\u1eeba v\u00e0 m\u1ed9t qu\u1ea3 thanh long l\u00e0 25 ngh\u00ecn \u0111\u1ed3ng. S\u1ed1 ti\u1ec1n mua 5 qu\u1ea3 d\u1eeba v\u00e0 4 qu\u1ea3 thanh long l\u00e0 120 ngh\u00ecn \u0111\u1ed3ng. H\u1ecfi gi\u00e1 m\u1ed7i qu\u1ea3 d\u1eeba v\u00e0 gi\u00e1 m\u1ed7i qu\u1ea3 thanh long l\u00e0 bao nhi\u00eau ? Bi\u1ebft r\u1eb1ng m\u1ed7i qu\u1ea3 d\u1eeba c\u00f3 gi\u00e1 nh\u01b0 nhau v\u00e0 m\u1ed7i qu\u1ea3 thanh long c\u00f3 gi\u00e1 nh\u01b0 nhau.<\/p>\n
C\u00e2u 3<\/b> (1,5 \u0111i\u1ec3m).<\/p>\n
Cho ph\u01b0\u01a1ng tr\u00ecnh : \u00a0\u00a0\u00a0 (1)\u00a0\u00a0\u00a0\u00a0 (m l\u00e0 tham s\u1ed1).<\/p>\n
a) Gi\u1ea3i ph\u01b0\u01a1ng tr\u00ecnh (1) v\u1edbi m = 2.<\/p>\n
b) T\u00ecm m \u0111\u1ec3 ph\u01b0\u01a1ng tr\u00ecnh (1) c\u00f3 hai nghi\u1ec7m x1<\/sub> v\u00e0 x2<\/sub> sao cho .<\/p>\nC\u00e2u 4 <\/b>(3 \u0111i\u1ec3m).<\/p>\n
Cho \u0111\u01b0\u1eddng tr\u00f2n (O) c\u00f3 d\u00e2y BC c\u1ed1 \u0111\u1ecbnh kh\u00f4ng \u0111i qua t\u00e2m O. \u0110i\u1ec3m A chuy\u1ec3n \u0111\u1ed9ng tr\u00ean \u0111\u01b0\u1eddng tr\u00f2n (O) sao cho tam gi\u00e1c ABC c\u00f3 3 g\u00f3c nh\u1ecdn. K\u1ebb c\u00e1c \u0111\u01b0\u1eddng cao BE v\u00e0 CF c\u1ee7a tam gi\u00e1c ABC (E thu\u1ed9c AC, F thu\u1ed9c AB). Ch\u1ee9ng minh r\u1eb1ng :<\/p>\n
a) BCEF l\u00e0 t\u1ee9 gi\u00e1c n\u1ed9i ti\u1ebfp.<\/p>\n
b) EF.AB = AE.BC.<\/p>\n
c) \u0110\u1ed9 d\u00e0i \u0111o\u1ea1n th\u1eb3ng EF kh\u00f4ng \u0111\u1ed5i khi A chuy\u1ec3n \u0111\u1ed9ng.<\/p>\n
C\u00e2u 5 <\/b>(3 \u0111i\u1ec3m).<\/p>\n
Cho c\u00e1c s\u1ed1 th\u1ef1c d\u01b0\u01a1ng x, y th\u1ecfa m\u00e3n . Ch\u1ee9ng minh r\u1eb1ng:<\/p>\n
\u0110\u1eb3ng th\u1ee9c x\u1ea3y ra khi n\u00e0o ?<\/p>\n
\u2026\u2026\u2026\u2026\u2026\u2026. H\u1ebft \u2026\u2026\u2026\u2026\u2026\u2026.<\/p>\n
\u00a0<\/b><\/p>\n","protected":false},"excerpt":{"rendered":"
S\u1ede GI\u00c1O D\u1ee4C V\u00c0 \u0110\u00c0O T\u1ea0O NGH\u1ec6 AN K\u00cc THI TUY\u1ec2N SINH V\u00c0O L\u1edaP 10 THPT N\u0102M H\u1eccC 2015 – 2016 Thi ng\u00e0y 10 \/ 9 \/ 2015 \u0110\u1ec0 CH\u00cdNH… <\/p>\n","protected":false},"author":1,"featured_media":3405,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41,6],"tags":[313],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/3404"}],"collection":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/comments?post=3404"}],"version-history":[{"count":0,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/posts\/3404\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media\/3405"}],"wp:attachment":[{"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/media?parent=3404"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/categories?post=3404"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/onthitot.com\/wp-json\/wp\/v2\/tags?post=3404"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}