TÍNH S C  20170 32018.2  C1201732017.22 C20172 32016.23   C201...

Câu 18: Tính S C

20170

3

2018

.2  C

12017

3

2017

.2

2

C

20172

3

2016

.2

3

   C

20172017

3.2

2018

A. 5

2017

B. 6.5

2018

C. 5

2018

D. 6.5

2017