Решение:
log49 28 = log7^2 28 = 2 log7 28 = 2 (log7 4 + log7 7) = 2 (2 + 1) = 2 3 = 6
Ответ: log49 28 = 6.
Решение:
log49 28 = log7^2 28 = 2 log7 28 = 2 (log7 4 + log7 7) = 2 (2 + 1) = 2 3 = 6
Ответ: log49 28 = 6.