Question

 

Answer 1

1: \(\sqrt{11-2\sqrt{10}}=\sqrt{\left(\sqrt{10}-1\right)^2}=\left|\sqrt{10}-1\right|=\sqrt{10}-1\)

2: =căn (căn 7-căn 2)^2=căn 7-căn 2

3: =căn (căn 3-1)^2=căn 3-1

4: =căn (3+căn 2)^2=3+căn 2

5: =căn (5-căn 2)^2=5-căn 2

6: =căn (căn 5-căn 2)^2=căn 5-căn 2

7: =căn (căn 14-1)^2=căn 14-1

8: =căn (căn 2-1)^2=căn 2-1

9: =căn (căn 3+1)^2=căn 3+1

10: =căn (căn 3+căn 2)^2=căn 3+căn 2

11: =căn (căn 6-1)^2=căn 6-1

12: =căn (căn 13-1)^2=căn 13-1