1.求值log(2)27/log(8)9=____________.2.求值log(1/81)27=_____________.3.若log(64)x=-2/3,求x的值.

求值:(log(4)3+log(8)3)×(log(3)2+log(9)2)+log(2)(2^5)¼ 1.求值log(2)27/log(8)9=____________.2.求值log(1/81)27=_____________.3.若log(64)x=-2/3,求x的值. 求值 log【9(下标)】3+log【 9（下标）】27 log【2】（1/2）- log【1/2】2 对数:log(4)8－log(1/9)3 求值 求值 log（2）9×log（3）2 求值,（log(6)4+log(6)9）^2 1.求值25^log(5)^3+lg100+log(1/2)4.2.9^log(3)^5的值为（ ）.A.5 B.15 C.25 D.453.计算log(2)2+log(5)1-log(1/3)1/27+[3^log(3)5]^2+3^log(3)2. log以8为底9的对数log以27为底32对数 求值 求值:2log(角标3)2-log(角标3)32/9+log(角标3)8-5^log(角标5)3等于? log(27)32 × log(64)27+log(9)2 × log(4)根号27=?log(27)32 × log(64)27+log(9)2 × log(4)根号27=? 求值：log2cosπ/9+log (log(4)3+log(8)3)(log(3)2+log(9)8) 怎么个思路 [log(5)8]*[log(32)5]+log(9)8/log(3)2 化简:(log^3 2+log^9 2)(log^4 3+log^8 3) (log(4)3+log(8)3)(log(3)2+log(9)2) 怎么个思路 log以4为底3×log以9为底2＋log以2为底^4√64 求值log以9为底32×log以64为底27＋log以9为底2×log以4为底√27 求值 对数计算1.{log(4)（3）+ log(8) (3)} X {log(3)(2)+log(9)(2)}2.{log(2)(3)} X {log(3)(4)+log(9)(2)}3.(lg2)^+1g2X 1g5 +1g50 求值2log₃2-1og₃32/9+log₃8-5ˆ（2log5 3）