Déterminer le domaine de définition des fonctions suivantes

1.  f(x) = (3 x - 1)/(x^2 + 7 x - 8)

2.  f(x) = (1 - 3 x)^(1/2)

3.  f(x) = 1/(4 - x^2)^(1/2)

4.  f(x) = (x^2 - 5 x - 6)/((x - 1) (5 - x^2))^(1/2)

5.  f(x) = 1/(x^2 - {x - 6})

6.  f(x) = x^(1/2)/(2 x^3 + 3 x^2 - 8 x + 3)

7.  f(x) = (5 x^3 - 27 x^2 + 40 x - 12)^(1/2)

8.  f(x) = (12 x^3 + 16 x^2 - 25 x + 7)^(1/2)/x

9.  f(x) = (-x^2 - x + 12)^(1/2)/(2 - {x + 1})

10.  f(x) = (3 x - 2)/({x^2 - 4 x} - 4)

11.  f(x) = (5 - 3 {x})^(1/2)

12.  f(x) = ({x - 4} - 3)^(1/2)

13.  f(x) = 2/({x^2 - 6 x} - 9)^(1/2)

14.  f(x) = (x - 1)/({x} + 1)^(1/2)

15.  f(x) = (3 x^3 - 5 x^2 - 16 x + 12)^(1/2)/(1 - x^2)

Solutions

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