Найдите log(0,8) 3*log3 1,25
log(0,8)3*log3 5/4 = (1/log(3)0,8)·log3 5/4 = (log3 5/4)/(log3 0,8) = log(0,8) 5/4 = log(0,8)0,8^(–1)=–1 Ответ: -1