# Thread: suppose f,g and h are functions defined

1. ## suppose f,g and h are functions defined

Suppose f,g and h are functions defined by

F(x) = 1 , g (x) 3 and h(x) = (x+1) (x-2) .
2x - 3 Öx + 4 x+1

which one of the following ststements is/are true?

• Df = { x e R : x not equl to 3/2 }
• Dg = { x e R : x > -4 }
• Dh = R

2. Originally Posted by Alexander
Suppose f,g and h are functions defined by

F(x) = 1 , g (x) 3 and h(x) = (x+1) (x-2) .
2x - 3 Öx + 4 x+1

which one of the following ststements is/are true?

• Df = { x e R : x not equl to 3/2 }
• Dg = { x e R : x > -4 }
• Dh = R

1)True

2)No it has to be $x>-4$.

3)No $x\not = -1$