> 数学 >
log以3为底1/16的对数xlog以5为底1/9的对数怎么算
人气:136 ℃ 时间:2020-04-12 16:51:20
解答
答案:
log3(1/16) xlog5(1/9)
=(-4)log3(2)x(-2)log5(3)
=8lg2/lg3xlg3/lg2
=8lg3/lg2
=8log2(3)
推荐
猜你喜欢
© 2025 79432.Com All Rights Reserved.
电脑版|手机版