( - 1- 1/1 ) . ( -1 -1/3 ) . ( -1 - 1/4) . ..... . ( -1 - 1/2022 )
1 câu trả lời
= - 2/1 . ( - 4/3 ) . ( - 5/4 ) . ... . ( - 2023/2022 )
= -2 . ( -4 ) . ( -5 ) . ... . ( -2023 ) / 1 . 3 . 4 . ... . 2022
= -2 . ( -2023 ) / 1 . 3
= 4046 / 3
Xin hay nhất !