Jump to content

Photo

Tính $x^3,y^3,z^3$ theo a,b,c

- - - - -

  • Please log in to reply
No replies to this topic

#1
ocean99

ocean99

    Trung sĩ

  • Thành viên
  • 101 posts

Tìm các số nguyên x,y,z thỏa mãn:

$$\left\{\begin{matrix} x+y+z=a\\ x^2+y^2+z^2=b^2\\ \frac{1}{x}+\frac{1}{y}+\frac{1}{z}=\frac{1}{c} \end{matrix}\right.$$

Tính $x^3,y^3,z^3$ theo a,b,c :D


Edited by ocean99, 24-10-2013 - 18:35.





1 user(s) are reading this topic

0 members, 1 guests, 0 anonymous users