4. (10%) Definition: The function ln(x) = , x ＞ 0, is called the natural logarithm function. Prove that In(ab) = ln(a) + In(b) for a, b ＞ 0.
阿摩線上測驗
登入
阿摩線上測驗
登入
, x ＞ 0, is called the natural logarithm function. Prove that In(ab) = ln(a) + In(b) for a, b ＞ 0.