c^2-1/9

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Solution for c^2-1/9 equation: 


c in (-oo:+oo)

c^2-(1/9) = 0

c^2-1/9 = 0

1*c^2 = 1/9 // : 1

c^2 = 1/9

c^2 = 1/9 // ^ 1/2

abs(c) = 1/3

c = 1/3 or c = -1/3

c in { 1/3, -1/3 }

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