10、设a、b、C、d、m、n均为int型变量,且a=5、b=6、c=1、d=2 m=2、n=3,则执行m=(d>c)&&(n=a>b)后n的值为 14、能正确表达数学关系|a-10&8a-10&&a-10la<10

第九章欧几里得空间 9-1定义与基本性质 一、向量的内积 定义1设V是实数域R上一个向量空间在V上定义了一个二元实函数,称为内积记作(a,B),它具有以下性质: (1)(a,)=(B,a); (2)(ka,)=k(a,B); (3)(a+,y)=(a,y)+(B,y) (4)(a,a)≥0,当且仅当a=0时,(a,a)=0

Algorithms Day 12 L8.2 A weakness of hashing Problem: For any hash function h, a set of keys exists that can cause the average access time of a hash table to skyrocket. IDEA: Choose the hash function at random, independently of the keys

一、选择题答案 1.B2.A3.B4.A5.1C5.2 6.C7.d8.C9.10

Note final ps For question 2(a)the value of k'in the final equation(Eq 3b) needs to be rescaled Tuesday lecture will be for questions on the last problem set Juan)

第五章参考答案 一、单项选择题: 1、B、2、A、3、D、4、C、5、A、6-2 3BCBCD3;CDBDD;ADBAC;CDA

I If f(t)=100 for 04.(a) Calculate v at t=T/4.(b) Find the average power delivered by this waveform to a 5Q2 resistor 3 Let v(t)=3-3 cos(100 t-40)+4 sin(200 T t-10)+2.5 cos 300 tt V Find: (a)the average value Var;(b)the rms value V;(c)the period T; (d)v(18ms)

一、最大线性无关向量组 定义5设有向量组A,如果在A中能选出个向量a1,a2,…,an,满足 (1)向量组A:a1,a2,…,a,线性无关; (2)向量组A中任意r+1个向量(如果A中有

一、选择题(共16题32分) 1.2分(8716)8716有两位同学进行蔗糖水解实验时,所用盐酸溶液浓度为N1蔗糖溶液浓度为N2,他们分别用等体积的盐酸与蔗糖溶液混合,不等体积的盐酸与蔗糖溶液混合,则他们所测得的反应终止时体系旋光度分别为a1和a2,则: () (A)a1=a2 (B)a1>a2 (C)a< (D)a1≠a2

Let A and B be sets. A function f from A to B is an assignment of exactly one element of B to each element of A. We write f(a) = b if b is the unique element of B assigned by the function f to the element a of A. If f is a function from A to B, we write f : A→B