R2=1/9

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Solution for R2=1/9 equation: 


R in (-oo:+oo)

R^2 = 1/9 // - 1/9

R^2-(1/9) = 0

R^2-1/9 = 0

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

R^2 = 1/9

R^2 = 1/9 // ^ 1/2

abs(R) = 1/3

R = 1/3 or R = -1/3

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

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