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Exponent Properties. For all real numbers n , m , x , y. (except that 0 0 is undefined, and denominators can never be zero). Exponent Properties. Exponent Properties. Warning. Derivations. We know that. n factors. If n is a positive integer. Derivations. Consider. When n > m.
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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,