So sánh

T

thuyduong1851998

so sánh $5-3\sqrt[]{2}$ và $2\sqrt[]{3} -3 $
________________________________________________________


[TEX][/TEX] 5 - 3\sqrt[]{2} = \sqrt[]{25} - \sqrt[]{18} > \sqrt[]{25} - \sqrt[]{20,25} = 5 - 4,5 = 0,5
2\sqrt[]{3} - 3 = \sqrt[]{12} - \sqrt[]{9} < \sqrt[]{12,25} - \sqrt[]{9} = 3,5 - 3 = 0,5

Suy ra 5 - 3\sqrt[]{2} > 2\sqrt[]{3} - 3
 
Last edited by a moderator:
Top Bottom