对数函数题 log a - log b = 3 log (c/2) 求 a = ______________

问题描述:

对数函数题 log a - log b = 3 log (c/2) 求 a = ______________

log a - log b = 3 log (c/2)
log a/b = log (c/2)^3
a/b=(c/2)^3
a=b(c/2)^3=bc^3/8