每週一題102.05.01

 

設對所有實數x，y，函數f(x)都滿足：
(i) f(x) > 0；
(ii) f(2) = 8；
(iii) 2f(x+y) = f(x)f(y)

，則

 

﹝出自南一書局﹞

Date Posted: 01 May 2013 @ 05 27 PM
Last Modified: 07 May 2013 @ 09 36 PM
Posted By: hs_math
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