TÍNH TỔNG S C= 20190 −C20191 +C20192 −C20193 + +... C201998 −C201999...
Câu 3: Tính tổng
S C=2019
0
−C2019
1
+C2019
2
−C2019
3
+ +... C2019
98
−C2019
99
+C2019
100
A.
C2018
100
B.
C100
2018
−1C.
C2019
100
+1D.
C100
2018
+12019
0
−C2019
1
+C2019
2
−C2019
3
+ +... C2019
98
−C2019
99
+C2019
100
2018
100
100
2018
−12019
100
+1100
2018
+1