Số vô tỉ. Căn bậc hai số học

Home Lớp 7 Toán lớp 7 - Sách kết nối tri thức Bài 6: Số vô tỉ. Căn bậc hai số họcBài tập cơ bản

{"common":{"save":0,"post_id":"5643","level":1,"total":10,"point":10,"point_extra":0},"segment":[{"id":"6824","post_id":"5643","mon_id":"1158532","chapter_id":"1158543","question":"Ch\u1ecdn t\u1eeb thích h\u1ee3p \u0111i\u1ec1n vào ch\u1ed7 "..." \u0111\u1ec3 \u0111\u01b0\u1ee3c câu hoàn ch\u1ec9nh. S\u1ed1 vô t\u1ec9 là s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp phân ......<\/p><img class=\"img_dd small\" src=\"\/data\/library\/gia-dinh\/3mecon.png\" \/><\/p>","options":["A. <\/strong>h\u1eefu h\u1ea1n \n ","B. <\/strong>vô h\u1ea1n tu\u1ea7n hoàn \n ","C.<\/strong> vô h\u1ea1n không tu\u1ea7n hoàn"],"correct":"3","level":"1","hint":"","answer":"S\u1ed1 vô t\u1ec9 là s\u1ed1 vi\u1ebft \u0111\u01b0\u1ee3c d\u01b0\u1edbi d\u1ea1ng s\u1ed1 th\u1eadp phân vô h\u1ea1n không tu\u1ea7n hoàn<\/span>.<\/p>\u0110áp án \u0111úng là C.<\/strong> vô h\u1ea1n không tu\u1ea7n hoàn<\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-02 08:10:05","option_type":"txt","len":2},{"id":"6825","post_id":"5643","mon_id":"1158532","chapter_id":"1158543","question":"C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a m\u1ed9t s\u1ed1 $a$<\/span> không âm kí hi\u1ec7u là<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/gia-dinh\/2-ba-chau.png\" \/><\/div>","options":["$a$<\/span>","$a^2$<\/span>","$\\sqrt{a}$<\/span>"],"correct":"3","level":"1","hint":"","answer":"C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a m\u1ed9t s\u1ed1 $a$<\/span> không âm kí hi\u1ec7u là $\\sqrt{a}$<\/span><\/p>\u0110áp án \u0111úng là $\\sqrt{a}$<\/span><\/span><\/p>","type":"choose","extra_type":"classic","time":"0","user_id":"131","test":"1","date":"2022-04-02 08:12:15","option_type":"math","len":0},{"id":"6827","post_id":"5643","mon_id":"1158532","chapter_id":"1158543","question":"C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a m\u1ed9t s\u1ed1 a không âm là s\u1ed1 x không âm sao cho<\/p><div class=\"lt123_imgs\"><img class=\"img_dd small\" src=\"\/data\/library\/gia-dinh\/me-con.png\" \/><\/div>","options":["A.<\/strong> $x^2 = a$<\/span>","B.<\/strong> $x . 2 = a$<\/span>","C.<\/strong> $x = a^2$<\/span>"],"correct":"1","level":"1","hint":"","answer":"C\u0103n b\u1eadc hai s\u1ed1 h\u1ecdc c\u1ee7a m\u1ed9t s\u1ed1 a không âm là s\u1ed1 x không âm sao cho  $x^2 = a$<\/span><\/p>\u0110áp án \u0111úng là  A.<\/strong> $x^2 = a$<\/span><\/span><\/p>","type":"choose","extra_type":"shape1","time":"0","user_id":"131","test":"1","date":"2022-04-02 08:15:03","option_type":"math","len":0}]}