2/5-y-1/y-2=0

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Solution for 2/5-y-1/y-2=0 equation: 


D( y )

y = 0

y = 0

y = 0

y in (-oo:0) U (0:+oo)

2/5-y-(1/y)-2 = 0

2/5-y-y^-1-2 = 0

-1*y^1-1*y^-1-8/5*y^0 = 0

(-1*y^2-8/5*y^1-1*y^0)/(y^1) = 0 // * y^2

y^1*(-1*y^2-8/5*y^1-1*y^0) = 0

y^1

(-8/5)*y-y^2-1 = 0

(-8/5)*y-y^2-1 = 0

DELTA = (-8/5)^2-(-1*(-1)*4)

DELTA = -36/25

DELTA < 0

y in { } 

y belongs to the empty set

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