File Urls
"{\"id\":9181,\"type\":\"document\",\"url\":\"https:\/\/biteducation.easyedu.vn\/sites\/default\/files\/easyschool\/upload\/2026\/04\/buoi_31_-_cong_thuc_nhan_xac_suat_4.pdf\",\"width\":null,\"height\":null,\"thumbnail\":\"https:\/\/biteducation.easyedu.vn\/sites\/all\/themes\/easyedu\/images\/pdf-large.png\"}"
Lecture Type
Bài tập về nhà
code
16/4/2026 BTVN
Created by
2455cf3e-8c5f-48dd-a11c-7368d7b4a48b