Question

20,11 : 201,1 - 20,11: 10 - 20,11 : (2,1 : 21)

Answer 1

20,11: 201,1- 20,11: 10- 20,11: (2,1: 21)

=20,11: 201,1- 20,11: 10- 20,11: 0,1

=20,11: (201,1-10-0,1)

=20,11: 191

=2011/19100=0,1052879581

Answer 2

\(20,11:201,1-20,11:10-20,11:\left(2,1:2,1\right)\)

\(=0,1-2,011-20,11:1\)

\(=-1,911-20,11\)

\(=-22,021\)

Answer 3

đề bài là gì vậy