(2x^-3y^-1z^-2/4x^-5y^-7z)^-1

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Solution for (2x^-3y^-1z^-2/4x^-5y^-7z)^-1 equation: 


D( x )

x = 0

x^-5*y^-7*((2*x^-3*y^-1*z^-2)/4)*z = 0

x = 0

x = 0

x^-5*y^-7*((2*x^-3*y^-1*z^-2)/4)*z = 0

x^-5*y^-7*((2*x^-3*y^-1*z^-2)/4)*z = 0

1/2*x^-8*y^-8*z^-1 = 0 // : 1/2*y^-8*z^-1

x^-8 = 0

x należy do O

x in (-oo:0) U (0:+oo)

(x^-5*y^-7*((2*x^-3*y^-1*z^-2)/4)*z)^-1 = 0

2*x^8*y^8*z = 0 // : 2*y^8*z

x^8 = 0

x = 0

x in { 0} 

x belongs to the empty set

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