z^(-3)/z^(-7)

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Solution for z^(-3)/z^(-7) equation: 


D( z )

z^-7 = 0

z = 0

z^-7 = 0

z^-7 = 0

1*z^-7 = 0 // : 1

z^-7 = 0

z naleu017Cy do O

z = 0

z = 0

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

(z^-3)/(z^-7) = 0

1*z^4 = 0 // : 1

z^4 = 0

z = 0

z in { 0} 

z belongs to the empty set

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