Category: Economics

Rachels, Rachels. The Right Thing to Do: Readings in Moral Philosophy

➤ Why do indeterminate forms like 0/0 occur and how can I fix them?
Indeterminate forms appear when direct substitution cancels meaningful behavior. Fix them by factoring common terms, rationalizing radicals, simplifying complex fractions, or using L’Hôpital’s rule when both numerator and denominator approach 0 or ±∞. These techniques reveal the true limiting value or show divergence.

Differentiate between movement along and a shift of the demand curve.

➤ How do I compute the geometric mean in Excel or a calculator?
In Excel use =PRODUCT(1+A1:A20/100)^(1/COUNT(A1:A20))-1 and format as percent. For numerical stability, use =EXP(AVERAGE(LN(1+A1:A20/100)))-1. If any factor ≤0, filter or adjust values first. Use AVERAGE(LN(…)) as an array formula if needed; Excel 365 handles it automatically.