If the sum of two rational numbers is negative, then the two numbers are positive and negative. Is the absolute value of negative large?

Positive and negative numbers

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1. 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______ ．
2. 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?
3. Comparing two negative numbers, the one with larger absolute value () and the one with smaller absolute value ()
4. Comparison of rational numbers: two numbers with different signs_________ The absolute value of two non negative numbers is smaller
5. 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
6. 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!
7. lim （x→0+）tan x/x=
8. Find the limit Lim ┬ (x → 0) &; ((Tan &; x-sin &; x) / ln &; (1 + x ^ 3)) lim┬(x→0)⁡〖(x-sin⁡x)/x^3 〗
9. lim(x→+∞) (2/π arctan X)^X
10. lim(x→+∞)〖x(π/2-arctan x)〗
11. 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
12. 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
13. 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
14. The 50th power of negative 2 multiplied by the 25th power of negative zero 25 is equal to? Simple method, thank you
15. What is the 207th power of 0.125 times the 208th power of negative 8
16. The 208th power of minus two plus the 207th power of minus two is equal to?
17. 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)
18. What is the sum of binomial coefficients?
19. 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~
20. In (a + b) 10 expansion, the term with the largest binomial coefficient is (?)