Respuestas

2012-04-28T04:34:42+02:00

primero los dominios

 

Df: xR

Dg: ]-,-1]U[1,+[

Dh:xR {x1} 

 

(f+g)(x)= 2x-3+(x²-1)

(f*g)(x)= (2x-3)(x²-1)=2x(x²-1)-3(x²-1)

(f*g)(x)= (2x-3)/(x²-1)

 

(f o g)(x)=[2(x²-1)]-3

(g o h)(x)= (x²-1)/[(x²-1)-1]

(h o g)(x)=[(x/x-1)²-1]

 

ESPERO TE SIRVA, SALUDOS