The expression (

MATHEMATICS · Single correct · A Level · Mathematics · Algebra and Functions · Algebra and Functions

Problem

The expression

\dfrac{a^{0}}{a^{n}}

(

a\neq0

n

a positive integer) is rewritten as

a^{0-n}

. Which law of exponents justifies this step? (a)

\text{Zero Exponent Rule}

(b)

\text{Negative Exponent Rule}

(c)

\text{Quotient Rule}

(d)

\text{Product Rule}