TÍNH TỔNG 1 ( 20181 )2 2 ( 20182 )2 ... 2017( 20182017)2 2018( 20182...

Câu 45: Tính tổng

1

(

2018

1

)

2

2

(

2018

2

)

2

...

2017

(

2018

2017

)

2

2018

(

2018

2018

)

2

S

=

C

+

C

+ +

C

+

C

2018

2017

2

1

A.

1

4036

2018

S

=

2019

C

D.

2018

4036

2018

S

=

2019

C

S

=

2018

C

B.

1

4036

2018

S

=

2018

C

C.

2018

2018

1009