Решение задачи #77268
log_(0, 2)(x) = log_(0, 2)(7/9) + log_(0, 2)(21) - 2 * log_(0, 2)(7)
log0,2(x) = log0,2(7/9) + log0,2(21) - 2 * log0,2(7)
log0,2(x) = log0,2(7/9 * 21 : 7)
log0,2(x) = log0,2(7/3)
x = 7/3
Теги задачи:
log0,2(x) = log0,2(7/9) + log0,2(21) - 2 * log0,2(7)
log0,2(x) = log0,2(7/9 * 21 : 7)
log0,2(x) = log0,2(7/3)
x = 7/3
Теги задачи: