Afficher les solutions

f(x) = (x - 1) * exp(1 - x)
A: ((1 - sqrt(5)) / 2, f((1 - sqrt(5)) / 2))
a = Tangent(A, f)
B: ((1 + sqrt(5)) / 2, f((1 + sqrt(5)) / 2))
b = Tangent(B, f)
c = false
M = Point(f)
T = Tangent(M, f)