一道离散证明可数题show that the set of all real numbers that are solutions of quadratic equations a^2x+bx+c=0,where a,b and c are integers,is countable.意思是证明当a,b,c都是整数时,a^2x+bx+c=0的所有的解释可数的,

一道离散证明可数题show that the set of all real numbers that are solutions of quadratic equations a^2x+bx+c=0,where a,b and c are integers,is countable.意思是证明当a,b,c都是整数时,a^2x+bx+c=0的所有的解释可数的, 一道量子力学的证明题一道证明题A particle is in the ground state of a box of length L.Suddenly the box expands(symmetrically) to twice its size,leaving the wave function undisturbed.Show that the probability of finding the particle in t 证明自然数的离散拓扑,其可数乘积与 无理数 同胚! Wasn't that a great talent show? talk show可数吗 show可数么? 节目show可数吗 一道实变函数或者叫数学分析的证明题证明任何闭集都可表成可数多个开集的交 一道高中英语同义句转换题Studies show that ones attitudes are greatly relevant to ones behaviourStudies show that ones attitudes ＿ ＿ to do with ones behaviour 求一道离散数学题.证明：至少有p条边的p阶图必含圈. 一道微积分证明题f(x) is continuous at close interval [0,1].f(0)=f(1).show that there exist a number c such that f(c-1/8)=f(c+1/8)中文意思差不多是 在[0,1]中 f（x）是连续的.f(0)=f(1).证明 在这个区间存在一个点c 以至 show,news ,newspaper可数吗 TV show可数吗急 tv show是不是可数名词 英语翻译show that a free-falling ball dropped vertically from the rest travels three times as far from t = 1s to t = 2s as from t =0 to t = 1s想让我SHOW什么出来,这么说SHOW都是证明的意思么? 英语翻译studies show that deeds don’t match word 数学证明T一道.带图. 看不懂一道离散数学题,请高手指教前提：(P∨Q)∧(P→R)∧(Q→S)结论：S∨R证明：（1）P∨Q P (2)╕P→Q T(1)E (3)Q→S P (4)╕P→S T(2)(3)I (5)╕S→P T(4)E (6)P→R