4/t-1=4/-2+2t

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Solution for 4/t-1=4/-2+2t equation: 


D( t )

t = 0

t = 0

t = 0

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

4/t-1 = 2*t+4/(-2) // - 2*t+4/(-2)

4/t-(2*t)-(4/(-2))-1 = 0

4/t-2*t-1+2 = 0

4*t^-1-2*t^1+1*t^0 = 0

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

t^1*(1*t^1-2*t^2+4*t^0) = 0

t^1

t-2*t^2+4 = 0

t-2*t^2+4 = 0

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

DELTA = 33

DELTA > 0

t = (33^(1/2)-1)/(-2*2) or t = (-33^(1/2)-1)/(-2*2)

t = (33^(1/2)-1)/(-4) or t = (33^(1/2)+1)/4

t in { (33^(1/2)-1)/(-4), (33^(1/2)+1)/4} 

t in { (33^(1/2)-1)/(-4), (33^(1/2)+1)/4 }

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