对数函数题 log a - log b = 3 log (c/2) 求 a = _______________数学解答

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

人气：280 ℃　时间：2019-10-01 19:57:37

解答

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