I have absolutly no idea how to do this. so let X be a random variable with pdf fx(xy) = x for 0<=x<=1 2 - x for 1 <= 1 <= 2 0 otherwise. I"m looking through my book, and it doesn't give examples that resembles this. all I see is the moment is e^(tk) * the function.... and tI dont know what to do when it comes to my problem. is it the integeral from 0 to 1 of e^(tk) * x + the integeral from 1 to 2 of e^tk * 2 - x?