1-x^2/2

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Solution for 1-x^2/2 equation: 


x in (-oo:+oo)

1-((x^2)/2) = 0

-1/2*x^2 = -1 // : -1/2

x^2 = 2

x^2 = 2 // ^ 1/2

abs(x) = 2^(1/2)

x = 2^(1/2) or x = -2^(1/2)

x in { 2^(1/2), -2^(1/2) }

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