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If the sum of two nonzero rational numbers is zero, then their quotient is () A.0 B.-1 C.1 D. Not sure
The sum of two nonzero rational numbers is zero,
These two numbers are mutually opposite,
Their quotient is negative.
Therefore, B.
I have a few math problems with rational numbers, no, Please write down the method and the result, 1. If -m >0,|m|=7, find the value of m 2. If |x+y||y-2|=0, find the value of |x||y| 3. Given |a|=4,|b|=2, and a > b, find the value of a+b 4. The absolute value of a is 2, the inverse number of b is -4, the negative inverse number of c is -2, and the value of c/a+b is obtained 5. Given-2< x <3, Simplify|x+2||x-3| 6. Given a=0, b=0, find the value of |a|/a+|b|/b 7. Calculate |3/1-2/1 4/1-3/1 5/1-4/1...+|10/1-9/1| 8. Comparison -17/10,-19/12,-23/15,33/30,97/60 9. If a <0, what is the value of a+|a| 10. If m is a rational number, try to compare the size of |m| and -5m 11. If a is a rational number, try to compare the sizes of a and 3a 12. Comparison of sizes 19/18,1999/198,1999/1998 13. Compare the sizes of 2/1*4/3*6/5*...*100/99 and 10/1
1. Because -m >0, when m0, x-30, b >0,|a|/a+|b|/b=1,(2) a
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