B

 hì

= 3 x ( 10/21 - 3/14 ) x 14/11

= 3 x 20 - 9/42 x 14/11

= 3 x 1/3

= 1

b

Tên TA k dấu à nhen >3

Tham khảo : Hi. My name is Le Bao Phuong. I'm going to be in 5th grade this year. I live in Long Bien, Hanoi, Vietnam. I like the color blue, like to ride a bike and read detective stories. How about you?

sao ko show?

1/3