y-5/y-y/y+1

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Solution for y-5/y-y/y+1 equation: 


D( y )

y = 0

y = 0

y = 0

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

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

y-5*y^-1-1+1 = 0

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

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

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

y^1

y^2-5 = 0

y^2-5 = 0

DELTA = 0^2-(-5*1*4)

DELTA = 20

DELTA > 0

y = (20^(1/2)+0)/(1*2) or y = (0-20^(1/2))/(1*2)

y = 5^(1/2) or y = -5^(1/2)

y in { -5^(1/2), 5^(1/2)} 

y in { -5^(1/2), 5^(1/2) }

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