. 2 2 (0, 25)5 X K6X X X X X3 COS 201...
Câu 21.
.
2
2
(0, 25)
5
x
k
6
x
x
x
x
x
3 cos 2019
sin 2019
2cos 2020
cos 2019
sin 2019
cos 2020
Câu 21.
.
2
2
(0, 25)
5
x
k
6
x
x
x
x
x
3 cos 2019
sin 2019
2cos 2020
cos 2019
sin 2019
cos 2020