B
binhpham_04


[@};-TEX]{log}_{2}{\sqrt{x+3}}[/TEX]=[TEX]{log}_{3}{3x}[/TEX]
[TEX]{log}_3{4}[/TEX] =[TEX]{log}_{4x}{3y}[/TEX]
cac ban giup minh nhe

[TEX]{log}_3{4}[/TEX] =[TEX]{log}_{4x}{3y}[/TEX]
cac ban giup minh nhe