1个回答
展开全部
1
a=log3 8-2log3 6
=3log3 2-2(log3 2+1)
=(log3 2)-2
=a-2
2
=5loga x+(1/2)loga y-(1/3)loga z
3
log3 8÷log3 4
=(3log3 2)÷(2log3 2)
=3/2
4
log21 (1/49)
=-2log21 7
=-2a
5
lg6
=lg2+lg3
=a+b
lg12
=2lg2+lg3
=2a+b
6
=[log5 (4*3)]/[log5 (5*0.6*4)]
=1
a=log3 8-2log3 6
=3log3 2-2(log3 2+1)
=(log3 2)-2
=a-2
2
=5loga x+(1/2)loga y-(1/3)loga z
3
log3 8÷log3 4
=(3log3 2)÷(2log3 2)
=3/2
4
log21 (1/49)
=-2log21 7
=-2a
5
lg6
=lg2+lg3
=a+b
lg12
=2lg2+lg3
=2a+b
6
=[log5 (4*3)]/[log5 (5*0.6*4)]
=1
本回答被提问者采纳
已赞过
已踩过<
评论
收起
你对这个回答的评价是？
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
