Sr Examen
ax+y=a2; x+ay=1
Solución
Respuesta rápida
$$a_{1} = - \frac{x - 1}{y}$$
=
$$\frac{1 - x}{y}$$
=
$$a_{21} = - \frac{x^{2} - x - y^{2}}{y}$$
=
$$\frac{- x^{2} + x + y^{2}}{y}$$
=
=
$$\frac{1 - x}{y}$$
=
-(-1 + x)/y
$$a_{21} = - \frac{x^{2} - x - y^{2}}{y}$$
=
$$\frac{- x^{2} + x + y^{2}}{y}$$
=
-(x^2 - x - y^2)/y