D. 1/2是分数,属于有理数。题目中选项C的表述不够清晰(如未说明省略部分是否非循环),但按照常见题目的设计意图,通常此选项默认表示无限不循环小数(如无理数典型形式),因此选C。答案:C 解析:只有无限不循环小数为无理数,C的描述可能是该类的简写,其他选项均为有理数。
Prove that 2 is an irrational number. 相关知识点: 试题来源: 解析 Proof by contradiction: assume that 2 is a rational and can be written where a and b are both non-zero integers and have no common factors. √2=a/b⇒√(2b)=a⇒2b^2=a^2 2 a2 must be a even, so a must ...
I IS AN IRRATIONAL NUMBERBennett, AmandaObsidian
An irrational number is defined as a number that cannot be expressed as a simple fraction, meaning it cannot be represented as the quotient of two integers. Unlike rational numbers, which can be expressed in the form ( frac{p}{q} ) (where ( p ) and ( q ) are integers and ( q neq...
But how do we know that pi is an irrational number? Rational numbers, which make up the majority of numbers we use in day-to-day life (although less than half of all possible numbers), can be written in the form of one whole number divided by another. Pi, with its complicated string...
2. Pi is an irrational number. What does it mean to be an irrational number? 相关知识点: 试题来源: 解析 An irrational number is a number that cannot be written as a ratio of two integers.It cannot be represented as a terminating or repeating decimal. ...
16 A student argues that when a rational number is multiplied by an irrational number the result will always be an irrational number.16(a)Identify the rational number for which the student's argument is not true.[1 mark]16(b)Prove that the student is right for all rational numbers other ...
A rational number is a type of a real number that can be expressed in the form of {eq}\displaystyle \frac{p}{q} {/eq} where {eq}\displaystyle p,q \in \mathbb { I } {/eq} that is, integers. So, if we add ...
Prove that sqrt(3) is an irrational number. 08:26 Find the greatest number which on dividing 151 and 377 leaves remainde... 02:31 If A, B and C are interior angles of a triangle ABC, then show that si... 04:46 if angle A=90^(@), then find the value of tan ((B+C)/(2...
The 7th of these problems pertained to Euler's constant Gamma. After investigating this problem for many years, the author has proved that Euler's constant Gamma is an irrational number.doi:http://dx.doi.org/Shi, KaidaMathematics