Ch\u01b0\u01a1ng 2 -B\u00e0i t\u1eadp tr\u1eafc nghi\u1ec7m Gi\u1ea3i t\u00edch 12: B\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh m\u0169 v\u00e0 b\u1ea5t ph\u01b0\u01a1ng tr\u00ecnh l\u00f4garit (Ph\u1ea7n 1)<\/a><\/blockquote><\/iframe>