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D( y )
y = 0
y = 0
y = 0
y in (-oo:0) U (0:+oo)
2*y-(3/y) > 0
2*y-3*y^-1 > 0
2*y-3*y^-1 = 0
y^-1*(2*y^2-3) = 0
2*y^2 = 3 // : 2
y^2 = 3/2
y^2 = 3/2 // ^ 1/2
abs(y) = (3/2)^(1/2)
y = (3/2)^(1/2) or y = -(3/2)^(1/2)
1/y = 0
1*y^-1 = 0 // : 1
y^-1 = 0
y należy do O
(y-(3/2)^(1/2))*(y+(3/2)^(1/2)) > 0
(-oo:-(3/2)^(1/2)) (-(3/2)^(1/2):(3/2)^(1/2)) ((3/2)^(1/2):+oo) y-(3/2)^(1/2) - - + y+(3/2)^(1/2) - + +
y in (-oo:-(3/2)^(1/2)) U ((3/2)^(1/2):+oo)
(-oo:-(3/2)^(1/2)) U ((3/2)^(1/2):+oo)
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