已知4^a=3 代数式log8(9)-2^(log4(3))

已知4^a=3 代数式log8(9)-2^(log4(3)) log4(3)-log4(12)-log8(4) =log4(3/12)- log8( 8^(2/3) ) log8( (log4(3)+log8(3))*(log3(2)+log8(2))-log1/2(^4√32)=? 已知1/2log8(a)+log4(b)=5/2,log8(b)+log4(a^2)=7,则ab= 已知已知log8(a)+log4(b^2)=5,log8(b)+log4(a^2)=7,求log4（根号下ab） 1.(log3 2+log9 2)(log4 3+log8 3) 2.已知log18 9=a.18^b=5.求log36 (log3^2 + log9^4)×(log4^3 + log8^3) 求值:(log4^ 3+log8 ^9)*(log3^ 2+log9 ^16) 计算:(log4 3+log8 3)×log9 √2=? (log4(3)+log8(3))*log3(2) (log4 3+log8 3)*(log3 2+log4 2) 已知½log8（a）+log4（b）=5/2,log8(b)+log4(a^2)=7 求ab的值