题目如下
答案:1 悬赏:30 手机版
解决时间 2021-11-19 22:11
- 提问者网友：酱爆肉
- 2021-11-18 22:18
题目如下
最佳答案
- 五星知识达人网友：封刀令
- 2021-11-18 23:44
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
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