I am wassim from Montreal ( student) and I have this problem in an econometrics course
I need to know how to solve the: As lamda tends to zero, x^{lamda} tends to 1 and hence the numerator and denominator both tend to zero. Thus this problem is a candidate for l'hopital's rule. My assumption is that your difficulty is differentiating x^{lamda} with respect to lamda. If you don't recall how to differentiate this form ( a constant raised to a variable power) you can proceed as follows. y'/y = ln(x) and hence y' = y ln(x) = x^{lamda} ln(x). Now apply l'hopital's rule to your limit and consider the new limit Thus Harley
