z-4/z-2z-1/11z

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Solution for z-4/z-2z-1/11z equation: 


D( z )

z = 0

z = 0

z = 0

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

z-(2*z)-((1/11)*z)-(4/z) = 0

z-2*z+(-1/11)*z-4*z^-1 = 0

-12/11*z^1-4*z^-1 = 0

(-12/11*z^2-4*z^0)/(z^1) = 0 // * z^2

z^1*(-12/11*z^2-4*z^0) = 0

z^1

(-12/11)*z^2-4 = 0

(-12/11)*z^2-4 = 0

DELTA = 0^2-(-4*4*(-12/11))

DELTA = -192/11

DELTA < 0

z in { } 

z belongs to the empty set

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