<t>Thanks very much for your time Aaron. Would you be kind and have a go at the last part of the question: INTERGRATING BY PARTS, FIND AN EXPRESSION FOR E(X), STATING FOR WHAT VALUES OF V IT IS DEFINED. FINALY: IF A RANDOM VARIABLE Y IS DEFINED BY: Y = 1/(1+X) FIND THE P.D..F OF Y. THANKS V MUCH FOR...