查看“︁指数恒等式”︁的源代码

在[[數學]]中，有許多[[指數恆等式]]。

==乘法指數定律==
*<math>\!\, a^{b + c} = a^b a^c</math>

==除法指數定律==
*<math>\!\, {a^b \over a^c} = a^{b - c}</math> , (a≠ 0)

==冪指數定律== 
*<math>\!\, \left( b^w \right)^y = b^{w y}</math>
*<math>\!\, (r b)^y = r^y b^y</math>
*<math>\!\, \left({c \over a}\right)^x = {c^x \over a^x}</math> , (a ≠ 0)
 
==零指數定律== 
*<math>\!\, x^0 = 1 \ (x \neq 0)</math>

==負指數定律==
*<math>\!\, x^{- y} = {1 \over x^y}</math>

==分數指數定律==
*<math>\sqrt[p]{f} = f^{1 \over p}</math>
*<math>\sqrt[q]{k^b} = k^{b \over q}</math>

==參見==
* [[指數]]
* [[數學]]

==外部連結==
*[https://web.archive.org/web/20081212135343/http://www.fss.edu.hk/maths/formula/indexlaw.htm 指數定律]

[[Category:指数]]
[[Category:数学恒等式]]