Cho B=1/1^2+1/3^2+1/4^2+.._+1/2021.2023. Chứng minh rằng 29/62
Tuyển Cộng tác viên Hoc24 nhiệm kì 28 tại đây: https://forms.gle/GrfwFgzveoKLVv3p6
Mai tales part in deferment activates such as socer table tennis. Sometimes she goes swimming. She often play music in shool music room.At the weekend she like play computer game 1 Which sports does my play ? 2 How often does she swmming ? 3 Where does she play music ? 4 Does she rehease play ? 5 When does she play game?