Tổng C0 2019 + C1 2019 + C2 2019 + C3 2019 + ...+ C2016 2019 + C2017 2019 có giá trị bằng:

16/50

Tổng C20190+C20191+C20192+C20193+...+C20192016+C20192017 có giá trị bằng:

22017.

22017−2018.

22019−1.

22019−2020.

Giải thích

Chọn D

Ta có

C20190+C20191+C20192+C20193+...+C20192016+C20192017+C20192018+C20192019=22019

⇔C20190+C20191+C20192+C20193+...+C20192016+C20192017+C20192018+C20192019=22019−C20192018−C20192019

⇔C20190+C20191+C20192+C20193+...+C20192016+C20192017+C20192018+C20192019=22019−2019−1

⇔C20190+C20191+C20192+C20193+...+C20192016+C20192017+C20192018+C20192019=22019−2020.