SET
Across
- 2. If the universal set is U = { 1 , 2 , 3 , 4 , 5 } and A={2,4}, then A′ = { 1 , 3 , 5 }.
- 4. a set of which all the elements are contained in another set.
- 6. Theintersection of two sets, denoted A∩B, is the set of all elements that are common to both sets A and B.
- 9. The difference of two sets, denoted − A−B or \ A\B, is the set of all elements that are in A but not in B.
- 12. The set of all rational and irrational numbers.
- 13. It consists of the set of real numbers and two operations calledadditionandmultiplication
- 14. The symmetric difference of two sets, denoted AΔB or A⊕B, is the set of all elements that are in either A or B, but not in both.
Down
- 1. The empty, denoted ∅ ∅ or { } {}, is a set with no elements
- 3. {..., -4, -3, -2, -1}
- 5. The union of two sets, denoted A∪B, is the set of all elements that are in either set A, or set B, or in both.
- 7. Set If U= { 1 , 2 , 3 , 4 , 5 } U={1,2,3,4,5}, then U is the universal set.
- 8. {0, 1, 2, 3, 4, ...}
- 10. The set of all positive and negative whole numbers, including zero.
- 11. If A = { a , b , c } A={a,b,c}, then ∣A∣=3.