📚
Все вопросы
- Let A = {1,2}; B = {a,b}, so A x B = … #661
- If X and Y are two sets, then X ∩ (Y ∪ X) equals … #662
- If E = { 1, 2, 3 } and F = { 3, 2, 1 }, then the two sets are … #663
- The product of a rational and irrational number is … #664
- If A is a countable set, and B is an uncountable set, then the most we can say about (A union B) is that it is... #665
- If A is a finite set, and B is a finite set, then the most we can say about (A intersect B) is that it is #666
- If b = 3, then any integer can be expressed as a = #667
- Which number is divisible by 11? #668
- The least number that is divisible by all the numbers from 1 to 5 (both inclusive) is … #669
- When a number is divided by 7, its remainder is always: #670