怎们算log9 27?

log4^27×log(8)25×log9^5 log9^8×log4^27=____. log9(45)-log9(5) log3 5-log3 15+1/2log9 27 的值 log2 根号2+log9 27+4^log4 13=? log2^根号下2+log9^27+4^(log4^13) 计算:(1/4)^log4^1/3-lg25-lg4-log9^27 （1）log4 27乘以log25 8乘以log9 5 （2）（log4 3+log8 3）（log3 2+log9 2 计算:log27(32)×log64(27)+log9(2)×log4(√27)= 2^(log4^12)-3^(log9^27)+5^(log25^1/3)等于多少? log2 √2 +log9 27 +4∧log4 13的值为 log√3^9+log9^27+(1/4)log4^1/16