>
数学
>
a=log以3为底2的对数,b=log以3为底5的对数,用a,b,表示log以27为底100的对数,
人气:213 ℃ 时间:2020-06-03 16:48:15
解答
答:
a=log3(2),b=log3(5)
log27(100)
=log3(100)/log3(27)
=log3(10^2)/3
=2log3(10)/3
=(2/3)*[log3(2)+log3(5)]
=(2/3)*(a+b)
=2(a+b)/3
推荐
log以9为底27的对数咋算
log以5为底3的对数×log以27为底125的对数
已知log以12为底27的对数=a,求log以6为底16的对数
Log以1/81为底的27的对数怎么算?
27的2/3次方减去log以2为底8的对数 是怎么算的?
—What‘s this?—It’s()“U”and()“S” A.an,a B.a,an C.a,a
统计学的意义是什么?
Where are you going to do at eight tomorrow morning
猜你喜欢
天然气管道和燃气灶之间的管子怎么接?
1\2+(1\3+2\3)+(1\4+2\4+3\4)+(1\5+2\5+3\5+4\5)+``````(1\2003+2\2003``````2002\2003)
用哪些词形容“少”?
甲、乙两数之和是210,甲数的1/3等于乙数的1/4.甲、乙两数各是多少?
一道SAT ie 真题Despite research on the diagnosis of heart disease
thank you very much for _____ the beautiful present for me 1.buy 2.buying 3.gave 4.giveing
关于with的一题【高中英语选择题】!
若点C把线段AB黄金分割,且AC>BC,AC=2cm,则BC=_.
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版