log9＾6和log4 ＾6等于

log9＾6和log4 ＾6等于 log9×log4 log4(sin3π/4)+log9[tan(-5π/6)]的值是多少 log4 sin(3π)/4+log9 tan[(-5π)/6]=_______. (log4＾3+log8＾3)(log3＾2+log9＾2)+log2＾(32)的1/4次方 计算log4(3)*log9(32) log4(底数)8（真数）—log9分之1（底数）3（真数）等于多少 2^(log4^12)-3^(log9^27)+5^(log25^1/3)等于多少? log4^27×log(8)25×log9^5 log4^27×log(8)25×log9^5 log9^8×log4^27=____. [log2(3)+log4(9)][log3(4)+log9(2)]等于注意：log2的2是下标,后同 化简(log4(3)+log8(3))(log3(2)+log9(2))(log4(3)+log8(3))(log3(2)+log9(2))=(lg3/lg4+lg3/lg8)(lg2/lg3+lg2/lg9)=5lg3/6lg2X3lg2/2lg3=5/6X3/2=5/4可是是怎样从第一步到第二步的? 1.log18/25(2/5)2.log4 27×log8 25×log9 5( 8和25是上下并列写的, log5^6×log6^7×log7^8×log8^9×log9^10等于多少? 求log5^6*log6^7*log7^8*log8^9*log9^25等于多少 log9 27等于多少 log9等于什么