w2=4/9

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Solution for w2=4/9 equation: 


w in (-oo:+oo)

w^2 = 4/9 // - 4/9

w^2-(4/9) = 0

w^2-4/9 = 0

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

w^2 = 4/9

w^2 = 4/9 // ^ 1/2

abs(w) = 2/3

w = 2/3 or w = -2/3

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

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