If a is a rational number, then | a | must () A. It's a positive number B. It's not a positive number C. It's a negative number D. It's not a negative number
∵ A is a rational number, a may be a positive number, a negative number and 0, | a | ≥ 0
RELATED INFORMATIONS
- 1. If the sum of two rational numbers is negative, then the two numbers are positive and negative. Is the absolute value of negative large?
- 2. The absolute value of the number 5 is 5, which is itself; the absolute value of the number - 5 is 5, which is its opposite number; the above comes from the theorem that the absolute value of a non negative number equals itself, and the absolute value of a non positive number equals its opposite number______ The absolute value of negative number - B is______ The absolute value of negative number 1 + A is______ The absolute value of positive number - A + 1______ .
- 3. The absolute value of a positive number is an integer, and the absolute value of a negative number is also a positive number. Is that right?
- 4. Comparing two negative numbers, the one with larger absolute value () and the one with smaller absolute value ()
- 5. Comparison of rational numbers: two numbers with different signs_________ The absolute value of two non negative numbers is smaller
- 6. What do we have in common with the square B 2c of a and the square B cube of a? (1) both__ Both are__ It's the same What is the common point between the square C of the square B of the monomial 2 A and the square B cube of a? (1) All of them__ Both are__ type
- 7. Find Lim x → 0 [x * (Cotx) - 1] / (x ^ 2) Thank you for the answer to this question. Urgent, online, etc.! ~ not many points, forgive me!
- 8. lim (x→0+)tan x/x=
- 9. Find the limit Lim ┬ (x → 0) &; ((Tan &; x-sin &; x) / ln &; (1 + x ^ 3)) lim┬(x→0)〖(x-sinx)/x^3 〗
- 10. lim(x→+∞) (2/π arctan X)^X
- 11. A. The absolute value of any rational number is a positive number B. the absolute value of any rational number is not a negative number C. The absolute values of two opposite numbers are equal D. nine are away from the origin
- 12. A. the absolute value of an integer is a positive number B. the absolute value of a negative number is a negative number C. The absolute value of any number will not be less than 0 The absolute value of any integer is a natural number
- 13. The 50th power of negative 2 multiplied by the 25th power of negative zero 25 is equal to? Simple method, thank you
- 14. What is the 207th power of 0.125 times the 208th power of negative 8
- 15. The 208th power of minus two plus the 207th power of minus two is equal to?
- 16. Square of (1 + x) + X (1 + x) + X (1 + x) + +What is the sum of the coefficients of all binomial expansions of X (1 + x)
- 17. What is the sum of binomial coefficients?
- 18. In the sixth power of (a + 2b-3c), find: (1) the coefficient of AB squared C cubic and (2) the sum of all the coefficients with a cubic term Thank you very much~
- 19. In (a + b) 10 expansion, the term with the largest binomial coefficient is (?)
- 20. Let the sum of binomial coefficients in the expansion of (a-b) n be 256, then the term with the smallest coefficient in the binomial expansion is () A. Item 5 B. items 4 and 5 C. items 5 and 6 D. items 4 and 6