2/z-5

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Solution for 2/z-5 equation: 


D( z )

z = 0

z = 0

z = 0

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

2/z-5 = 0

2*z^-1 = 5 // : 2

z^-1 = 5/2

-1 < 0

1/(z^1) = 5/2 // * z^1

1 = 5/2*z^1 // : 5/2

2/5 = z^1

z = 2/5

z = 2/5

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