P
phamhuyvu96


cac banj jai giups minh nha
giai phuong trinh voi nghiem nguyen duong:
[TEX]x^2+y^2+z^2=3xyz[/TEX]
giai phuong trinh voi nghiem nguyen duong:
[TEX]x^2+y^2+z^2=3xyz[/TEX]
Last edited by a moderator: