Express 1 / a^m using a negative exponent:
Aa^m
B(-a)^m
Ca^(1/m)
Da^(-m)
Answer & Solution
Correct answer: D. a^(-m)
1. The reciprocal rule: 1 / a^m = a^(-m).
2. Negative indices indicate reciprocals.
3. Example: 1 / 5^2 = 5^(-2).
_Source: ICMAI BoS CMA Foundation Paper 3 (Business Mathematics & Statistics), Module 2 §2.2 (Indices and Logarithms) + Module 5 (Standard Deviation), p. 112-160 + 318-340_