西安附属二院

已知方程kx+3=log2x的根满足x0属于(1,2) 方程lgx=4-2x的根x属于（k,k+1),k属于Z,则k=多少 方程lgx=10-2x的根x∈(k,k+1),k∈Z,则k= 方程lgx=8-2x的根x属于（k,k+1,）k属于z,求k.我要怎么知道把3和4带进去令f（x）=lgx+2x-8,则方程lgx+2x-8=0的近似解x=x0∈（k,k+1）,k∈Z,即 函数f（x）的零点,在（k,k+1）上,k∈Z,∵f（3）=lg3+6-8＜0,f（4）= 方程lgx=8-2x的根x在（k,k+1）内,k属于z,则k= 方程lgx=8-2x的根x属于（k,k+1）,k属于Z,则k=______ 方程3x+lgx=7的根x0位于区间(n,n+1)内,则n= 设x是方程8-x=lgx的解, 且x属于（k,k+1）（k属于Z） 则K=（?）A.5 B.6 C.7 D.8要详细理由 设方程2lnx=10-3x的解为x0,则关于x的不等式2x-3 设方程2lnx=7-2x的解为x0,则关于x的不等式x-2 设x0是方程lnx+x=4的解,则x0属于区间令f（x）=lnx+x-5,∵x0是方程lnx+x=5的解,∴x0是函数f（x）的零点．则f（3）=ln3-2＜0,f（4）=ln4-1＞0,∴x0∈（3,4）【【【我想知道3,4是怎么来的】】】 设x0是方程lnx+x=4的解,则X0在哪个区间内?答案是（2,3） 请把过程告诉我 设关于x的方程lnx+2x-6=0的实数解为a所在的一个区间是?要原因 若关于X的方程kX+1=lnX有解,则实数k的范围是? 当实数a为何取值范围时,方程lnx+2x-a=0在（1,2）内有实数解. 若关于X的方程kX+1=LnX有解,则实数k的取值范围是?会不会是(-§,1),还是(-§,e^-2]?还是有其他答案?请高手指教. 若方程lnx-6+2x=0的解为x0,則不等式x 若 f(lnx)=3x+4,则 f(x)的表达式为?RT 初二英语动词填空 动词填空 初二英语用所给动词的适当形式填空1The childrenn are going to havee fun_____(play)soccer this afternoon.2.There_____(be)a baseball game tomorrow afternoon.3.What about_____(go) for a swim?4.______(not be)late next time,please.5.Who ____ 一道初二英语动词填空Do you believe God _______the world (create ) 一道初二英语题——动词填空Do you know how much it______(weigh)when it was ten mouths old. 初二英语动词填空 1-8 有质量的 用所给动词的适当形式填空 初二英语 按动词的适当形式填空The twin often ___(go) to school by bike.But it ___(rain) at seven yesterday morning,so he ___(take) a bus to school 初二英语用所给动词的适当形式填空When ______ his father _____(join)the Party?—How long _____Charles Osborne ____(hiccup)?—He hiccupped for 69 years.The sun ____(go)down in the west.How about ______(watch)a video?He ____(stop)playin 帮忙做下初二英语动词适当形式填空三、动词适当形式填空(15’)1.I can hear the news.The radio must _____________(turn on) now.2.The goal of this game is _________ (teach) the children how______(use) the telephone.3.I usually us 句型转换 几道初二英语句型转换题 We often wear bright-colored clothes when we are happy.(对bright-colored提问)_______clothes _______you often wear when you are happy?We have a room with two single beds in it.(对with two single beds in it提问)_ 三道 初二英语句型转换题Don't afraid of SARS.Don't afraid ______ _____SARS.Which sport do you take part in?Which sport_____you_____?He learns Japanese by himself.He_____ _____Japanese.Thank you very much ! 初二英语题 句型转换1、Li Ming and I read Ehglish in the morning.(改为祈使句) _____ Li Ming and _____ _____ Ehglishin the morning.我咋觉得这题有问题呢 我填的是Both I read 可这不是祈使句啊?2、The boy said some