1/z=2/5

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Solution for 1/z=2/5 equation: 


D( z )

z = 0

z = 0

z = 0

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

1/z = 2/5 // - 2/5

1/z-(2/5) = 0

1/z-2/5 = 0

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

z^-1 = 2/5

-1 < 0

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

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

5/2 = z^1

z = 5/2

z = 5/2

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