已知已知log8(a)+log4(b^2)=5,log8(b)+log4(a^2)=7,求log4(根号下ab)
已知已知log8(a)+log4(b^2)=5,log8(b)+log4(a^2)=7,求log4(根号下ab)
已知1/2log8(a)+log4(b)=5/2,log8(b)+log4(a^2)=7,则ab=
已知½log8(a)+log4(b)=5/2,log8(b)+log4(a^2)=7 求ab的值
log4(3)-log4(12)-log8(4) =log4(3/12)- log8( 8^(2/3) ) log8(
已知4^a=3 代数式log8(9)-2^(log4(3))
1.(log3 2+log9 2)(log4 3+log8 3) 2.已知log18 9=a.18^b=5.求log36
log4 2+log8 2=多少?
log3^4*log4^8*log8^m=log4^2 求m
log4 8-log8 4=?
计算:1 (log4 3+log8 3)log3 2 2 loga b×logb c×logc a
已知a.b为方程x²-(根号10)x+2=0的两根,求log4 (a²-ab+b²)/|a
计算:(log4 3+log8 3)×log9 √2=?