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D( x )
x = 0
((3*w^5)/2)*x^5*y^-3 = 0
x = 0
x = 0
((3*w^5)/2)*x^5*y^-3 = 0
((3*w^5)/2)*x^5*y^-3 = 0
3/2*w^5*x^5*y^-3 = 0 // : 3/2*w^5*y^-3
x^5 = 0
x = 0
x in (-oo:0) U (0:+oo)
(((3*w^5)/2)*x^5*y^-3)^-6*((3*w^4*x^-2*y^-3)/2)^8 = 0
9/4*w^2*x^-46*y^-6 = 0 // : 9/4*w^2*y^-6
x^-46 = 0
x należy do O
x belongs to the empty set
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