There are many means of community season, such as writing letters, sending emails, making phone calls by fixing telephone or California sending a message through for real time community with thousands of QQ, MSN or skype, which of these men do you prefer and why? When making a phone call,...
What are real numbers? Learn about the different types of real numbers that occur in mathematics as well as how to identify them. In this lesson, you will learn the definition of real numbers, examples of real numbers, and what real numbers mean in mathematics. ...
Domain, in math, is defined as the set of all possible values that can be used as input values in a function. A simple mathematical function has a domain of all real numbers because there isn’t a number that can be put into the function and not work. An example in which the domain...
【题目】For real numbers a and b, definea Sb=(a-b)^2 ,What is (x-y)^2S (y-x)^2=(())1}。 答案 【解析】【答案】0【解析】翻译一下题目,就是:对于实数a、b,定义 a≤b=(a-b)^2 ,则(x-y)2$(y-x)2=__依定义有(x-y)^2S(y-x)^2=[(x-y)^2-(y-x)^2]^2=0故...
What does twice the difference mean in math? In mathematics, “twice the difference” usually means to find the difference between two numbers and then multiply that result by 2. For example, if you are asked to see twice the difference between 4 and 7, you would first find the difference...
题目【题目】What is the sum of all real numbers for which the median of the numbers 4, 6, 8, 17,and r is equal to the mean of those five numbers?(A.-5B.0C.5D.154E.354 相关知识点: 试题来源: 解析 【解析】A 反馈 收藏
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 ...
【题目】For real numbers a and b, defineaSb=(a-b)^2 。What is( |x-y)^2s(y-x) 2?{{1} 相关知识点: 试题来源: 解析 【解析】【答案】0【解析】由定义可知:(x-y)^2s(y-x)^2=[(x-y)^2-(y-x)^2]^2=0故答案为:0。
How does this work? Well, every complex number z can be written as where x and y are real numbers, and i is the square root of -1. We can then think of z as a point on the (x,y) plane with x being the position along the horizontal (i.e. real) axis, and y the position ...
What are real numbers and what does it mean when a number is squared or cubed? Real Numbers: Numbers are categorized in different forms such as fractional or integral, positive or negative, natural or whole, etc. Real numbers are a set all the numbers that can quantify...