一个字节等于多少bit

求函数y=2sin(3x+3/π)的周期,单调区间,最大值与最小值,并分别写出取到最大值与最小值时自变量x的集合 关于x的方程kx=3+x的解是整数,则k所能取的整数值有（ ） 方程ax+b=c的解是x=3求方程3ax+5b=5c的解 求文档:已知AX+BY=C的解为X=3,Y=4求方程3AX+2BY=5C的解把X=3，Y=4带入 求方程ax+b=c的解是x=3,求3a+5b=5c的解时间紧急 解关于X的方程：2分之AX-3+3分之AX-5B=1（A≠0） 1．Last month ,part of Southeast Aisa was struck by floods,from _____effects the people are still suffering.A.that B.whose C.those2.Mark was a student at this university from 1999 to 2003,______he studied veryhard and was made Chairman of the Studen 1、In this experiment,they were wakened several times during the night and asked to report what they ______?A.had just been dreaming B.have just been dreaming C.are just dreaming D.had just dreamed答案给的B,为什么?如果不对的话选A还是 1.---Is there anyone in the room?---No one.2.---Is there any person in the room?---None.这两道题有什么区别呢?第一题不可以用none来回答吗? 请帮我解释并解决两个英语练习题He asked me _ with me.A what is the trouble B what wrong was C what was the matter Dwhat trouble it is请就各选项具体解释I am sure_he said is true.A that B about that C of th 请帮我解释一下两道英语题~~~Mr.Green had all his money ------and couldn't--------his holtel bil.(填stolen,pay)The naughty boys were made-------their maths homework the next day.(填to hand in) 若关于x的方程1/3 x=1与3x+2a=ax的解相同,则a=? 求使下列函数取得最大值、最小值的自变量x的集合,并分别写出最大值、最小值是什么.(1)y=3sin(2x+兀/4)...求使下列函数取得最大值、最小值的自变量x的集合,并分别写出最大值、最小值是什么. y=1-1/2cosπ/3x的最大值,最小值怎样求?它们的自变量x的集和呢?到底是怎样做?真的不会. 英语第二题求解释~ 1 you should do what you can [help] those people.他答案上是to help想问为啥是用to,不是有can了吗2 Alice is {beautiful}of the two girls.答案是the more beutiful 想问为啥两者之间比较级还加the了? Two hundred people died in the accident,_______.A many of them childrenB they are childrenC many of whom childrenD many of them are children_______,we got to the village.A With the guide lead usB With the guide leading usC we led by the guideD With t This kind of paper as soft and light as silk but ___ expensive.A.much less B.much little C.many less D.much more thanWe should prevent pollution ____ happily A.to live B.for living C.from living D.living Mr Frank asked me a question ____ I could go with him to ____he called the Treasure House the next week.A.that;which B.whether;thatC.whether;whatD.taht;whereIn no country ____Britain,as has been mentioned,____experience four seasons during the course 已知y=3x-x3上,过点A（2,-2）作曲线y=3x-x3的切线,求切线方程. 已知曲线y=x3+3x,求这条曲线平行于直线y=15x+2的切线方程导数的题 曲线S: y=3x-x3及点P(2,2),求过点P的切线方程要解答过程呀谢拉～ y=1-1/2COSπ/3X .X属于R 求函数的最大值最小值自变量X的集合和最大值最小值是多少 函数y=1-1/2cosπ/3x的最大值的集合、最小值的集合 自学英语的方法有什么好呢,我目前基础比较浅,认识26个字母,词汇量200左右,想自学英语,有什么好方法? 我想自学英语,在1年时间内过4级我的英语底子很差,而现在我的工作又很需要英语,我的时间就只剩下了1年半,所以,想找一个实用的方法 想要自学英语,急求一种自学英语的软件,有单词解释,习题练习等,有视频教学当然最好不过了,我已经出社会三年了``最好能给我一个能直接下载软件的网站，注意是软件！自学英语的软件！ 各位推荐下自学英语的方法英语丢好多年了,现在想从0开始,发音,如何拼写等,希望大家支招,给些自学的方法或推荐些书籍, 方程ax2-(a-3)x+a-2=0中的a取整数,求使此方程的解至少有一个整数的a的值9月5日晚上结束 例4,关于x的方程ax2+2(a-3)x+(a-2)=0至少有一个整数解,且a是整数,求a的值.当a=0时,原方程变成-6x-2=0,无整数解.　　当a≠0时,方程是一元二次方程,它至少有一个整数根,说明判别式 Δ＝4(a-3)2-4a(a-2)＝4 若a是整数,关于x的方程ax2-(a-3)x+a-2=0至少有一个整数解,试确定a的值,并求出相应方程的整数解用根的判别式解 已知当x=-2时,代数式ax的三次方+bx-7的值为5,那么当x=2shi ,代数式ax的三次方+bx-7的值是多少?