The absolute value of two opposite numbers (), on the contrary, the absolute value of two equal numbers () or ()

RELATED INFORMATIONS

• 1. Two numbers add to get a positive number. What are these two numbers A. There is at least one positive number B. There is at least one negative number C. Both are negative numbers D. Both are positive numbers
• 2. The inverse proposition of positive number greater than negative number is
• 3. Is the sum of two positive numbers always greater than each addend?
• 4. Write the proposition "if (radical X-2) + (y + 1) ^ 2 = 0", then x = 2 and y = - 1 inverse proposition, no proposition, inverse no proposition, and judge their true and false
• 5. In the rectangular coordinate system, the inverse proposition of point (x, y) and point (negative x, negative y) about the origin symmetry, and judge the truth of the original proposition and the inverse proposition
• 6. If x − 2 + (y + 1) 2 = 0, then x = 2 and y = 1, the inverse proposition, the negative proposition and the inverse negative proposition are written, and their true and false are judged
• 7. Write out the inverse proposition, no proposition and inverse no proposition of the proposition (if x square + y square = 0, then x = 0 and y = 0), and judge the truth
• 8. If proposition x = 3, then x ^ 2-7x + 12 = 0 and the number of its inverse proposition, no proposition, inverse no proposition and false proposition?
• 9. If x = 2, why is the inverse proposition of square - 3x + 2 = 0 false? Please give me a counterexample!
• 10. If x = 2, then the inverse proposition of x square - 5, x + 6 = 0 is no proposition, the inverse proposition is no proposition and the truth is judged
• 11. If the absolute values of two opposite numbers are equal, then the two numbers with equal absolute values are opposite to each other______ (fill in "correct" or "wrong")
• 12. What is the opposite number equal to the absolute value?
• 13. The number whose absolute value equals its opposite number is the absolute value of (), (), and the opposite number is equal to itself
• 14. Is the absolute value of two opposite numbers equal or wrong
• 15. The inverse proposition, no proposition and inverse no proposition that the square of any real number is nonnegative In this topic, "any" is a full quantifier. Can it become an existential quantifier when it is rewritten into the form of "if ~"? If it can be changed, how can it be changed
• 16. The square of real number is the inverse proposition of non negative number, no proposition, you no proposition, and judge whether it is true or false
• 17. The inverse proposition of the proposition "if a number is negative, then its square is positive" is______ ．
• 18. The absolute value of a is equal to 4, the absolute value of B is equal to 2, and the absolute value of a + B is equal to a + B
• 19. The opposite number and absolute value of 3 - π
• 20. 2x-3 = 3, find the square of (2x-y) - 2x + y Come on, I'm going to sleep today. It's in your hands