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...
log8(9)* log27 (32)
log4 (3) *log9(2)- log 1/2(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 展开
log4 (3) *log9(2)- log 1/2(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 展开
1个回答
展开全部
log8(9)× log27 (32)
= (2/3)log2 (3) ×(5/3)log3(2)
= (2/3)×(5/3)
= 10/9
log4 (3) ×log9(2)- log 1/2(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)+log25(0.5)]
=[log2(5) - (1/2)log2(5)][log5(2) - (1/2)log5(2)]
= (1/2)log2(5)×(1/2)log5(2)
= 1/4
= (2/3)log2 (3) ×(5/3)log3(2)
= (2/3)×(5/3)
= 10/9
log4 (3) ×log9(2)- log 1/2(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)+log25(0.5)]
=[log2(5) - (1/2)log2(5)][log5(2) - (1/2)log5(2)]
= (1/2)log2(5)×(1/2)log5(2)
= 1/4
来自:求助得到的回答
迈杰
2024-11-30 广告
2024-11-30 广告
迈杰转化医学研究(苏州)有限公司于2013年成立,其前身为凯杰(苏州)转化医学研究有限公司。基于基因组学、蛋白组学、细胞组学及病理组学等综合性转化医学平台,丰富的伴随诊断开发经验,高质量的管理体系以及高素质的研发管理团队,迈杰转化医学为全球...
点击进入详情页
本回答由迈杰提供
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询