如何计算Exponents

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An exponent (power) indicates how many times a base is multiplied by itself. Exponents appear in compound interest, scientific notation, computer storage, and virtually all of science.

分步指南

1. 1bⁿ means multiply b by itself n times
2. 2b⁰ = 1 for any non-zero b
3. 3b⁻ⁿ = 1/bⁿ (negative exponent = reciprocal)
4. 4b^(1/n) = nth root of b (fractional exponent)

例题解析