WYZNACZ:
1) (x,y,z) z
1/x=1/z-1/y
2)(x,a)
xa=1/a =1/x
3)(b)
a=b-1/b+1
3
b-1=ab+a
b-ab=a+1
b(1-a)=a+1
b=(a+1)/(1-a) a różne od 1
1
1/x=(y-z)/zy
zy=xy-xz
zy+xy=-xz
y(z+x)=-xz
y=-zx/(z+x)
zy=x(y-z)
x=zy/(y-z)
zy+xz=xy
z(y+z)=xy
z=xy/(y+z)
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3
b-1=ab+a
b-ab=a+1
b(1-a)=a+1
b=(a+1)/(1-a) a różne od 1
1
1/x=(y-z)/zy
zy=xy-xz
zy+xy=-xz
y(z+x)=-xz
y=-zx/(z+x)
zy=x(y-z)
x=zy/(y-z)
zy+xz=xy
z(y+z)=xy
z=xy/(y+z)