Real numbers include rational numbers like positive and negative integers, fractions, and irrational numbers. Any number that we can think of, except complex numbers, is a real number. Learn more about the meaning, symbol, types, and properties of real n
What are the possible value(s) fora/(|a|)+b/(|b|)+c/(|c|)+(abc)/(|abc|)() A.0 B.1 and -1 C.2 and -2 D.0,2, and→-2E0,1, and→-1 答案 【解析】A相关推荐 1【题目】Suppose a, b, c and are nonzero real numbers, anda+b+c=0. What are the possible valu...
What Are the Real Numbers?About one hundred years ago, Dedekind was Professor of Mathematics at the ETH in Zurich, teaching differential and integral calculus. He describes how teaching this particular subject he was confronted with the questions of the foundations of analysis. Dedekind's little ...
Supposea,b and c are nonzero real numbers, and a+b+c=0. What are the possible value(s) for a|a|+b|b|+c|c|+abc|abc|? ( )A.0B.1and−1C.2and−2D.0,2and−2E.0,1and−1 答案 A翻译:假设 a、b、c 都是不为 0的实数,a+b+c=0.那么a|a|+b|b|+c|c|+abc|a...
结果1 题目Suppose that x and y are nonzero real numbers such that x yx−2y=−1, what is the value of xy?A. 2 B. −2 C. 1 D. 12 相关知识点: 试题来源: 解析 D Rearranging, we find x+y=2y−x,2x=y.反馈 收藏
Suppose that x and y are nonzero real numbers such that 3x yx−3y=− What is the value of x 3y3x−y( )?A. −3 B. −1 C. 1 D. 2 E. 3 相关知识点: 试题来源: 解析 D 由3x+yx−3y=−2,可得:−2(x−3y)=3x+y,即−2x+6y=3x+y,移项可得:5y=5x,即y=x,...
预订From Counting to Continuum: What Are Real Numbers, Really? 从计数到连续统:什么是实数, 真的吗?: 9781009538640 国外库房发货,通常付款后3-5周到货 作者:Edward Scheinerman出版社:Cambridge University Press出版时间:2024年12月 手机专享价 ¥ 当当价 降价通知 ¥700.00 ...
【题目】T he sum of two nonzero real numbers is 4 times their product. What is the sum of the reciprocals of thetwo numbers?A.1B.2C.4D.8 相关知识点: 试题来源: 解析 【解析】C 结果一 题目 【题目】T he sum of two nonzero real numbers is 4 times their product. What is the sum...
The sum of two nonzero real numbers is 4 times their product. What is the sum of the reciprocals of the two numbers? A. 1 B. 2 C. 4 D. 8. 相关知识点: 试题来源: 解析 C. Let the two real numbers be x,y. We are given that x+y=4xy, and dividing both sides by xy, ...
Real numbers and satisty the equation . what is ?( ) A: B: C: D: E: 相关知识点: 试题来源: 解析 B The answer is . This problem can be solved by noticing that this is the equation of a circle with radius of . When put into vertex form, the one point that satisfies this ...