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Let a square with an area of 10 have a side length of x. Is x a rational number?
Rational number is the general name of integer and fraction, all rational number can be into the form of fraction. This is the definition on Baidu, it is also written: integer and fraction are collectively called rational number, any rational number can be written as the form of fraction m/n (m, n are integers, and n=0). Any rational number can be on the number axis.
Is zero the smallest natural number, a positive integer, a rational number, or both positive and negative
The first is correct and the second should be 0 neither positive nor negative.
RELATED INFORMATIONS
- 1. Judgment:1 rational number includes positive number and negative number.2 positive integer includes zero and natural number.3 positive integer is natural number. I am not very clear about these three judgments. The third question is: is the positive integer a natural number? These questions are from the book I bought. I think the second question is similar to the third question, but the answer is different.(Explain the reason)
- 2. Zero and positive numbers are collectively referred to as ______ and zero and negative numbers are collectively referred to as ______.
- 3. Zero and positive numbers are collectively referred to as ______ and zero and negative numbers are collectively referred to as ______.
- 4. What is the difference between a positive number and a negative number
- 5. A positive number is greater than zero and a negative number is less than zero; the number of two negative numbers comparing size () is smaller? Please tell me what's in the brackets,
- 6. Any even power of a complex number is a nonnegative real number.
- 7. If the even power of a rational number is not a negative number, then the rational number is Please, heroes.
- 8. If the product of five rational numbers is negative, then the number of positive factors of the five rational numbers is () A.0 or 2 B.1 or 3 C.0 or 2 or 4 D.1 or 3 or 5
- 9. Several rational numbers are multiplied. When the number of negative factors is odd, the product must be negative. Several rational numbers are multiplied. When the product is negative, the number of negative factors is odd. Are these two sentences right?
- 10. If 5 rational numbers are multiplied and their product is negative, then the negative factor is.
- 11. The concepts of rational numbers and irrational numbers. Also, are some fractions rational numbers and some irrational numbers?
- 12. The Concept of Multiplication and Division of Rational Numbers The absolute value of the multiplier is equal to -?
- 13. The Concept of Multiplication and Division of Mathematical Rational Number in the First Grade of Human Education Press Urgent need... brother and sister The Concept of Multiplication and Division of Mathematical Rational Number in the First Grade of Human Education Press Urgent...... Big brother and sister
- 14. For any non-zero rational number a, b, the definition operation is as follows: a※b=ba-1, what is the value of (-4)3(-2)? If for any non-zero rational number a, the defined operation is as follows: a※b=b/a-1, what is the value of (-4)3(-2)? For any non-zero rational number a, b, the definition operation is as follows: a※b=ba-1, what is the value of (-4)3(-2)? If for any non-zero rational number a, the defined operation is as follows: a※b=b/a-1, what is the value of (-4)(-2)?
- 15. For nonzero rational numbers a and b, the definition and operation are as follows: a*b = a-b/a+b, then-3*4=() Why are the answers different?
- 16. In the old algorithm of rational number, we define the new operation "(+)" as follows: When a > or =b, a (+) b=b×b; when a
- 17. For the rational number x, y, a new operation ※: x y = ax+by+c, where a, b, c are constants, and the right side of the equation is the usual addition and multiplication operations. A.1 B.-1 C.11 D.-11
- 18. Rational definition operation For rational numbers, define an operation "△" such that a△b=3a+b÷a-3b, and find the value of (-2△[3△(-4)]. Please describe the algorithm or principle! Please state the reason! Rational definition operation For rational numbers, define an operation "△" such that a△b=3a+b÷a-3b, and obtain the value of (-2△[3△(-4)]. Please state the algorithm or reason! Please state the reason!
- 19. The smallest positive integer in the rational number is _ The largest negative integer is _ The smallest positive integer in the rational number is _ and the largest negative integer is _
- 20. The following statements are correct:() A. There is no largest negative integer in the rational number B. There is no largest positive integer in the rational number C. The sum of the two numbers of the same sign is certain to be greater than the addend D. The sum of the two numbers of the different sign is certain to be less than the addend The difference must be () A. Positive number B. Negative number C.0 D. Can not determine the positive and negative