題組內容
3. Definition: The function ln(x) = 
, x ＞ 0, is called the natural logarithm function.
(b) (8%) By (a), to prove ln(1/b) = -ln(b) and ln(a/b) = ln(a) - ln(b).
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3. Definition: The function ln(x) = , x ＞ 0, is called the natural logarithm function.
(b) (8%) By (a), to prove ln(1/b) = -ln(b) and ln(a/b) = ln(a) - ln(b).