算式log2^12-log4^9的值

算式log2^12-log4^9的值 log2(12)-log4(9)的值是 log2的12-log4的9 的值是多少? log2^x=log4^9 (log2底5+log4底0.2)(log4底2+log25底0.4)的值是 log4 243 - log8 729=?log4 12 - log2 6=? log2 20-log4 25的答案是 若log3(7)·log2(9)·log49(a)=log4(1/2),则a的值等于 log4(12)与log8(27)的差和log4(27)与log2(6)的差的比值为 log2(log3(log4的对数a))=log3(log4(log2的对数b））则a/b的值为? 求x的值 log4^x=-2/3 log2^(log5^x)=0log4^x=-2/3 log2^(log5^x)=0 分开的 [log2(3)+log4(9)][log3(4)+log9(2)]等于注意：log2的2是下标,后同 化简：（log2(3)+log4(9)+log8(27)+…+log2n(3^n))*log2(8的n次方根) (log2 3+log4 9+log8 27+...+log2^n 3^n）log9 32的N次方根 (log2 3+log4 9+log8 27+...+log2^n 3^n）log9 32的N次方根 若log2【log3(log4 x)]=0,求x的值 已知log2(log3(log4x))=log3(log4(log2y))=0,求x+y的值 若LOG4[LOG3(LOG2(X)]=0,求X的值