若a_______时,式子（a-1)^3+3有最小值

若a_______时,式子（a-1)^3+3有最小值 当a_______时,根号2a+3有意义 当a_______时,分式(a+4)(a-2)分之2a+1有意义 几道关于二次根式的填空题当x_______时,√2x+1无意义（2x+1是再跟号里的）如果式子√-a分之1有意义,那么a_______比较大小：-3√2 -2√3 如果(a+1)x^b-3+2=1是一元一次方程.则a_______,b=______ 当a_____时,分数的值小于1；当a_______时,分数的值等于1；当a_______时,分数的值大于1；当a_______时,分数能化成整数在七分之a中,a是非0的自然数.当a_____时,分数的值小于1；当a_______时,分数的值等 关于x的方程(a^2-9)x^2-(a-3)x-1=0,当a_______时,是一元二次方程,此时一次项系数是_____? 已知平面直角坐标系内两点A（3,a）,B（b,-5）.1.若直线AB∥x轴,则a_______,b_________2.若直线AB∥y轴,则a_______,b_________. 几道关于二次根式的填空题当x______时,√x-1是二次根式(x-1是再跟号里的）把2写成一个数的平方的形式当x_______时,√2x+1无意义（2x+1是再跟号里的）如果式子√-a分之1有意义,那么a_______比较大 当a+2＞b+2时,则-4a_______-4b This is a heavy traffic a_______ Mr Newton was famous a_______ a sientist. 读一读,用表示职业的单词完成句子1、i want to be like jay chou.i want to be a_________.2、i work in a hospital.i`m a_______.3、i work in a school.i`m a_______.4、i like flying in the sky.i want to be a____.5、i like dancing.i want t 若a的立方=a______,3次根号a=a,则a=______,根号a的平方=-2则a______,根号a的平方=a,则a_______.平方在根号里边 梯形个数1 2 3 4 5 6 图形周长5a 8a 11a梯形个数1 2 3 4 5 6图形周长5a 8a 11a 14a_______第n个嗯 1:My mother works in a_______(医院).2:Mike lives________(在……附近)our school.3:There is a new_________(旅馆)on Bridge Street.4:—Is there a_______(银行)in our town? —Yes,there is.5:Where is the_______(邮政)office.6:Li Lei sits_____ 若a这个式子 若式子2a的2次方-3a+4的值为6,则式子2/3a的2次方-a-1的值为