(-4y^27/5x^21)^-2

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Solution for (-4y^27/5x^21)^-2 equation: 


D( x )

x^21*((-4*y^27)/5) = 0

x^21*((-4*y^27)/5) = 0

x^21*((-4*y^27)/5) = 0

-4/5*x^21*y^27 = 0 // : -4/5*y^27

x^21 = 0

x = 0

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

(x^21*((-4*y^27)/5))^-2 = 0

25/16*x^-42*y^-54 = 0 // : 25/16*y^-54

x^-42 = 0

x należy do O

x belongs to the empty set

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