(2x/y)^-3

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Solution for (2x/y)^-3 equation: 


D( x )

(2*x)/y = 0

(2*x)/y = 0

(2*x)/y = 0

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

x = 0

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

((2*x)/y)^-3 = 0

1/8*x^-3*y^3 = 0 // : 1/8*y^3

x^-3 = 0

x naleu017Cy do O

x belongs to the empty set

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