4=w/2*w

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Solution for 4=w/2*w equation: 


w in (-oo:+oo)

4 = (w/2)*w // - (w/2)*w

4-((w/2)*w) = 0

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

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

w^2 = 8

w^2 = 8 // ^ 1/2

abs(w) = 2*2^(1/2)

w = 2*2^(1/2) or w = -(2*2^(1/2))

w in { 2*2^(1/2), -(2*2^(1/2)) }

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