Z2=4/9

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Solution for Z2=4/9 equation: 


Z in (-oo:+oo)

Z^2 = 4/9 // - 4/9

Z^2-(4/9) = 0

Z^2-4/9 = 0

1*Z^2 = 4/9 // : 1

Z^2 = 4/9

Z^2 = 4/9 // ^ 1/2

abs(Z) = 2/3

Z = 2/3 or Z = -2/3

Z in { 2/3, -2/3 }

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