-(- two and a half) and () are opposite to each other, and () are reciprocal to each other

-(- two and one half) = - (- 5 / 2) = 5 / 2
Opposite number - 5 / 2
Countdown 2 / 5

RELATED INFORMATIONS

1. The reciprocal of four and a half opposite numbers is ()
2. If the opposite number of a number is 5 and half, then the number is? And the reciprocal of the number is?
3. -Factorization of 5A ^ 3B ^ 2 + 20A ^ 2b-5ab
4. If the square + BX + C of the quadratic trinomial ax is a monomial, the condition is A：a≠0,b＝0,c＝0 B：a＝0,b≠0,c＝0 C：a＝0,b＝0,c≠0 D：a＝0,b＝0,c＝0
5. Is the Square-1 of x a binomial
6. 6a³b²-4a²b²+2ab²
7. -4a³b+6a²b²-8a²b= Factorization,
8. Factorization: - 4A ^ 2B ^ 3 + 16ab ^ 2-12ab Factorization: (1)-4a^2b^3+16ab^2-12ab (2)6x^3y^2+12x^2y^3-6x^2y^2 (3)(x-3)(x-2)+(x-2)
9. Factorization: - 4A3 + 16a2b-26ab2=______ ．
10. Factorization-4a ^ 3 + 16A ^ 2b-26b ^ 2 -How to factorize 4A ^ 3 + 16A ^ 2b-26b ^ 2?
11. -The opposite of (half to one third) is () and the reciprocal is ()
12. What's the inverse of (- three and a half)? What's the reciprocal?
13. What's the reciprocal of negative half?
14. If the rational number x equals its opposite and the rational number y equals its reciprocal, then y ^ 2008 + x ^ 2009= A 0 B 1 C -1 D 2 write the reason!
15. It is known that A. B is opposite to each other and C. D is reciprocal to each other. And y + 1 = 5, find Y2 + (a + B + CD) 2010 + (- CD) 2009 =?
16. a. Then a + B / 2010-2009 Mn = ()
17. -The reciprocal of the absolute value of 2.7 is, and the opposite of the reciprocal of 2 and 1 / 2 is
18. If we know that the inverse of the reciprocal of a is 5 and 1 / 7, then a = (), and the reciprocal of the absolute value of B is 2 and 1 / 3, then B = ()
19. If a + b 0 B.A
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