![ketoan4mat](/data/avatars/s/0/31.jpg?1410029439)
[size=+3]Ace wkt tham khảo 1 số cách giải bài toán của học sinh nước ngoài, như vậy mới gọi là trí tuệ. (hệ số IQ > = 200) [/size]. :banana:
Bài 1,
:wall:
Bài 2,
:wall:
Bài 3,
:wall:
Bài 4,
:wall:
Bài 5,
:wall:
Bài 6,
:wall:
Bài 7,
:wall:
Bài 1,
![nofx4h3ci4yeu8o766lt.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2Fnofx4h3ci4yeu8o766lt.jpg&hash=0924e4ca4eb2aeea0420592803111b5d)
Bài 2,
![7zlb3dp7h3axg7g8nz.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2F7zlb3dp7h3axg7g8nz.jpg&hash=12b482ef0debced84c73e402a65149e7)
Bài 3,
![1nf0n00u2oq7etm55e9h.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2F1nf0n00u2oq7etm55e9h.jpg&hash=c8607198dad0a55f950d30cb97f8c249)
Bài 4,
![nd0s9o8lhq9vc10v6uvp.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2Fnd0s9o8lhq9vc10v6uvp.jpg&hash=79dc45cee1d4a51db68e19c08dc6228f)
Bài 5,
![iwtez3my4t2deu61cjv3.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2Fiwtez3my4t2deu61cjv3.jpg&hash=d1ed718e29c47035ed3649c51826ed2b)
Bài 6,
![p1lkiorsfzok2kic92oz.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2Fp1lkiorsfzok2kic92oz.jpg&hash=ed5c3090bb3073be1e9cab3fcd01faf7)
Bài 7,
![l9ujuizwhsphokin7c1.jpg](/proxy.php?image=http%3A%2F%2Fupanh.com%2Fuploads%2F27-Oct-2009%2Fl9ujuizwhsphokin7c1.jpg&hash=64e75844c0ab69b2031e578a4c5aa225)
Sửa lần cuối: