Exponents and Roots
GRE · Flashcards · Recall
GRE · FLASHCARDS
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QUESTION
State the power of a product rule:
(
a
b
)
n
(ab)^n
(
ab
)
n
equals what?
QUESTION
State the definition of a fractional exponent:
a
1
n
a^{\frac{1}{n}}
a
n
1
equals what (for
a
≥
0
a \ge 0
a
≥
0
)?
QUESTION
State the quotient of powers rule for the same base:
a
m
a
n
\frac{a^m}{a^n}
a
n
a
m
equals what (for
a
≠
0
a \ne 0
a
=
0
)?
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ANSWER
a
m
−
n
a^{m-n}
a
m
−
n
. When dividing powers with the same base, subtract the exponents according to the quotient rule.
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