國中教甄｜數學數學109 年第 36 題單選題下列何者錯誤？A$\log a \times \log b = \log (a + b)$正確答案B$\sin(a + b) = \sin a \cos b + \sin b \cos a$C$\log_{a} b^{c} = \log_{c} b^{a}$D$\log_{10} 100 = 2$ 答案與詳解
