TÍNH TỔNG S =1.C20181 +2.C20182 +3.C20183 + +... 2018.C2018201...
Câu 37. Tính tổng S =1.C
2018
1
+2.C2018
2
+3.C2018
3
+ +... 2018.C2018
2018
A.2017.2
2017
B.2017.2
2018
C. 2018.22017
D.2018.2
2018
2018
1
+2.C2018
2
+3.C2018
3
+ +... 2018.C2018
2018
A.2017
B.2018
C. 2018.22017
D.2018