Let u = Z, a = {x | x + 2K, K ∈ Z}, B = {x | x = 2K + 1, K ∈ Z}, find CUA, cub
A = even, B = odd, u = integer
CuA=B
CuB=A
RELATED INFORMATIONS
- 1. Let u = n, a = {x | x = 2K, K ∈ n}, B = {x | x = 2K + 1. K ∈ n}, find CUA, cub
- 2. Can the intersection of set a and set B be empty? Can it be set a or set B?
- 3. The intersection of a and B is B. can a and B be empty
- 4. If the intersection of a and B is an empty set, then at least one of a and B is an empty set?
- 5. Is the intersection of a and a empty
- 6. Does the intersection of a and B equal a mean that B equals a
- 7. What does it mean that the intersection of a and B equals the union of a and B?
- 8. A ∪ B = a, then a can be equal to B, the intersection of a and B is equal to B, can a be equal to B
- 9. If a intersection B equals B, is a equal to B? That is, the intersection of a and B is equal to B. does it mean that set a and B are equal
- 10. What is the intersection of an empty set and a? 1. What is the intersection of an empty set and a (non empty set)? 2. Why {x | x > 2} {x | X2, or x
- 11. When u = Z, a =, B = find CUA, cub
- 12. Let u = Z, a = {x | x = 2K, K ∈ Z}; b = {x | x = 2K + 1, K ∈ Z} find CUA, Cub? Let u = Z, a = {x | x = 2K, K ∈ Z}; b = {x | x = 2K + 1, K ∈ Z} find CUA, Cub? It's urgent
- 13. Let a = {x x = 2k-1, K ∈ Z}, B = {x x = 2K, K ∈ Z}, find a ∩ B, find a ∪ B
- 14. Let u = Z, a = {x = 2K, K ∈ Z}, B = {x | x = 2K + 1, K ∈ Z} CUA, Cub? Write the steps?
- 15. It is known that two points a and B are on the straight line y = X-1, and the difference between the abscissa of a and B is the root sign 2 Be as detailed as possible
- 16. If a + B = 4 radical a + 2 radical B-5, then a + 2B= The faster the better, small points do not become respect!
- 17. (√3+√2)^-1+ √(-2)+3 √-8 The number of positive solutions of inequality 2x-1 < 3 is If x < m + 1 If x > 2m-1, the value range of M is
- 18. Given the module of vector a = 4, the module of B = 3, < A, b > = 3 / 3, find the module of (3a + 2b) & _; B, a + B If the module of vector a = 4, the module of B = 3, < A, b > = 3 / 3, find (3a+2b)•b Modules of a + B Modules of A-B
- 19. Given two points a (1,2,1), B (2, - 1,3), try to find the modulus and direction cosine of vector ab
- 20. Three points a (2,4) and B (0, negative 3) C and (5,1), find the cosine value of the angle between the vector AB and AC