已知y=2^(m+1),x=3+16^m,试用y的代数式表示x?
人气:107 ℃ 时间:2019-12-17 19:35:56
解答
log2(y)=m+1
m=log2(y)-1
x=3+16^[log2(y)-1]
x=3+2^4(log2(y)-1)
=3+1/16y^4
推荐
猜你喜欢
- John,could you help me?Yes,I am c-----填什么
- When mother entered the bedroom,little Jimmy pretended_____asleep.
- 欲除去硫酸亚铁溶液中含有的硫酸铜和硫酸铁等杂质,应选用的试剂是
- 玩具厂做2160个玩具,前5天做了360个.照这样机算,剩下的玩具还要多少天能完成?
- When there are too many cars on the road,there will be a t____ jam.
- what will you do with sth.还是how will you do with sth.
- 找规律填数1.1分之2,3分之4,9分之8,27分之16,(),()
- 1.92g铜和浓硝酸反应生成的1.12L气体则消耗的浓硝酸的物质的量