There are ten rational numbers, one of which is a square number, two opposite numbers, and two reciprocal numbers. If the product of these ten numbers is less than zero, then The number of positive numbers is at least () A.2, B.3, C.4, D.4 and above

RELATED INFORMATIONS

• 1. Write randomly two rational numbers with the same sign and compare their reciprocal sizes. Can you see how their reciprocal sizes relate to the original two numbers? Write randomly two rational numbers with the same symbol and compare their reciprocal sizes. Can you see how their reciprocal sizes relate to the original two numbers?
• 2. The product of a nonzero rational number and the inverse of its reciprocal number is ______.
• 3. If a > b, ab <0, and |a|<|b|, can you compare the four numbers a, b,-a,-b?
• 4. If the sum of two rational numbers is divided by the product of these two rational numbers, the quotient is equal to 0, then these two rational numbers () A. reciprocal B. opposite numbers C. There is a number 0 D. opposite to each other and not zero If the sum of two rational numbers is divided by the product of these two rational numbers, the quotient is equal to 0, then these two rational numbers () A. reciprocal B. opposite numbers C. There is a number 0 D. Opposite to each other and not zero
• 5. If the sum of two rational numbers is -1 and the quotient is 1, then their difference is () and the product is ()
• 6. If the sum of two nonzero rational numbers is zero, then their quotient is () A.0 B.-1 C.1 D. Not sure
• 7. If a, b, c are non-zero rational numbers, and a+b+c=0, ask... a difficult problem, how to do? A, b, c are nonzero rational numbers, and a+b+c=0, find all possible values of a/|a b/|b c/|c abc/|abc| It's so hard, who knows! Teach me,
• 8. The quotient of a nonzero rational number and its inverse? A, sign must be positive b, sign must be negative C, must be not less than zero d, must be greater than zero Why?
• 9. How many?
• 10. The quadratic of the nth power of 9 is equal to the 8th power of 3, n, is equal to
• 11. The rational set is () A the set of positive and negative numbers B the set of positive integers, negative integers and fractions C the set of integers and fractions D the set of integers and D Set of integers and negative numbers The rational set is () A the set of positive and negative numbers B the set of positive integers, negative integers and fractions C the set of integers and fractions D the set of integers and D A collection of integers and negative numbers
• 12. If a rational number is represented by the letter a, is the number a a positive or negative? And give examples.
• 13. For a rational number represented by the letter a, is it positive or negative
• 14. If the quotient of two rational numbers is negative, then the two numbers are both positive A or negative B has at least one negative C and one positive D a negative If the quotient of two rational numbers is negative, then the two numbers are both positive A or negative B at least one of which is negative C and is positive D a positive number a negative number
• 15. If the quotient of two rational numbers is positive, then the two numbers must be () A. All negative B. Both are positive C. At least one is positive D. Same number
• 16. If the product of two rational numbers is positive and the sum of two rational numbers is negative, then both numbers A are positive and B are negative. If the product of two rational numbers is positive and the sum of two rational numbers is negative, then two rational numbers are A is a positive number, B is a negative number, C is a positive number, D has one zero If the product of two rational numbers is positive and the sum of two rational numbers is negative, then both numbers A are positive and B are negative. If the product of two rational numbers is positive and the sum of two rational numbers is negative, then two rational numbers are A is a positive number and B is a negative number. D has one zero
• 17. Given that the quotient of two rational numbers is negative, then,
• 18. The absolute value of a rational number is equal to the opposite number of the number,
• 19. If the correct sum of two numbers is negative, then at least one of the two numbers is negative and the absolute value of the sum of two rational numbers is equal to the absolute value of the two numbers
• 20. The absolute value of a rational number is non-negative, i.e.|a| equals what?