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This article delves into the fundamental properties of exponents applicable to all real numbers, except the undefined scenario of zero to the power of zero. It explains various rules derived from mathematical principles, showcasing examples where n is greater than, equal to, or less than m. Discover how these exponent rules help simplify calculations and gain a deeper understanding of exponentiation. Explore key derivations and their implications, ensuring clarity in mathematical reasoning and application.
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Exponent Properties • For all real numbers n, m, x, y • (except that 00 is undefined, and denominators can never be zero)
Exponent Properties Warning
Derivations • We know that n factors If n is a positive integer
Derivations • Consider When n > m
Derivations • For Example
Derivations • So adopt the rule
Derivations • Now suppose n = m
Derivations • But we know that
Derivations • And so it must be true that
Derivations • Now suppose n < m, for example:
Derivations • But our rule says
Derivations • So we must conclude that
Derivations • Or in general,