TÍNH TỔNG S =1.C20181 +2.C20182 +3.C20183 +…+2018.C20182018A. S =2017...
Câu 44:
Tính tổng
S
=
1.
C
2018
1
+
2.
C
2018
2
+
3.
C
2018
3
+…+
2018.
C
2018
2018
A.
S
=
2017.2
2018
B.
S
=
2017.2
2017
C.
S
=
2018.2
2018
D.
S
=
2018.2
2017
Câu 44:
Tính tổng
S
=
1.
C
2018
1
+
2.
C
2018
2
+
3.
C
2018
3
+…+
2018.
C
2018
2018
A.
S
=
2017.2
2018
B.
S
=
2017.2
2017
C.
S
=
2018.2
2018
D.
S
=
2018.2
2017