问题标题:
关于log的计算log8(9)*log27(32)log4(3)*log9(2)-log1/2(四倍根号下32)[log2(5)+log4(0.2)][log5(2)+log25(0.5)]小括号里的数字是真数,小括号外的数字是底数
问题描述:
关于log的计算
log8(9)*log27(32)
log4(3)*log9(2)-log1/2(四倍根号下32)
[log2(5)+log4(0.2)][log5(2)+log25(0.5)]
小括号里的数字是真数,小括号外的数字是底数
接道良回答:
log8(9)×log27(32)=(2/3)log2(3)×(5/3)log3(2)=(2/3)×(5/3)=10/9log4(3)×log9(2)-log1/2(4√32)=(1/2)log2(3)×(1/2)log3(2)+log2(16√2)=1/4+9/2=19/4[log2(5)+log4(0.2)][log5(2)+log...
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