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 = ()

　a=-7/36 b= ±3/7

RELATED INFORMATIONS

1. -The reciprocal of the absolute value of 2.7 is, and the opposite of the reciprocal of 2 and 1 / 2 is
2. a. Then a + B / 2010-2009 Mn = ()
3. 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 =?
4. 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!
5. What's the reciprocal of negative half?
6. What's the inverse of (- three and a half)? What's the reciprocal?
7. -The opposite of (half to one third) is () and the reciprocal is ()
8. -(- two and a half) and () are opposite to each other, and () are reciprocal to each other
9. The reciprocal of four and a half opposite numbers is ()
10. If the opposite number of a number is 5 and half, then the number is? And the reciprocal of the number is?
11. If a + b 0 B.A
12. 5. If a + B < 0, AB < 0, then () a, a > 0, b > 0, B, a < 0, B < 0, C, a, B are positive and negative, and the absolute value of positive number is greater than that of negative number D A and B are positive and negative, and the absolute value of negative number is greater than that of positive number 6. Three brands of flour bags sold in a grain store are marked with the mass of (25 ± 0.1) kg, (25 ± 0.2) kg, (25 ± 0.2) kg respectively 3) kg, from which two bags can be taken out randomly, and their mass difference is () A 0.8kg B 0.6kg C 0.5kg D 0.4kg
13. A is negative, B and C are positive. Find the absolute value of a + C sum minus the absolute value of a plus the absolute value of B
14. A negative sign in front of a number becomes a negative number, Adding a negative sign before a number becomes a negative number. Is that correct If you add a negative sign before a number, it becomes the opposite of the number. Is () correct -Is 1 the largest negative integer () correct
15. Negative numbers are numbers with negative signs, Note that it's not "a number with a negative sign is a negative number." Contrary to that sentence
16. Is any number with a negative sign negative? Is - a negative
17. A number with a negative sign is a negative number ~ ~ ~ simple explanation~
18. What is correct is to add two negative numbers of a, take a negative sign, and subtract the absolute value, and subtract two opposite numbers of B, the difference is zero
19. If it is less than 0, the absolute value will be removed and a negative sign will be added in front of it
20. The absolute value is 5:1, the sign is negative, the number is?