Решите систему уравнений: х + 1/y = 5/2 y+1/x=5/2
Y=2,5-1/x=(2,5x-1)/x x+1/y=x+x/(2,5x-1)=5/2 2,5x^2/(2,5x-1)=5/2 5/2x^2=25/4x-5/2 10x^2-25x+10=0 x1=2 x2=1/2 y1=5/2-1/2=2 y2=5/2-2=1/2