Tolong bantu saya mengerjakannya, A dan C

A. log 10^4 = (ambil basis 10 biar mudah) = 10log10^4 = 4.(10log10) = 4(1) = 4.... C. 3log 1/27 = 3log 1/ (3^3) = 3log 3^-3 = -3 (3log3) = -3(1) = -3.... Rasendrio*