Write all subsets and proper subsets of set {a, B, C} Let's finish the problem by 22:00 this evening
All subsets {a} {B} {C} {a, B} {a, C} {B, C} {a, B, C}, empty sets
Proper subset {a} {B} {C} {a, B} {a, C} {B, C}, empty set
RELATED INFORMATIONS
- 1. If there are n elements in set a, then set a has n elements______ Subset, yes______ A true subset, yes______ A nonempty proper subset
- 2. The reason for the formula of the number of subsets of a finite set
- 3. What is the formula for subsets of numbers and non empty proper subsets,
- 4. Is an empty set a proper subset of all sets? Why? Some people say "non empty sets.",
- 5. An empty set is a proper subset of any set______ .
- 6. What does it mean that an empty set is the only proper subset of a set? Make it clear. Take an example
- 7. If a subset of a contains n elements, how many subsets of a? How many nonempty subsets of a? How many nonempty proper subsets of a?
- 8. There are 2 ^ n subsets, 2 ^ n-1 nonempty subsets and 2 ^ n-2 nonempty proper subsets of set a with n elements What if n = 0
- 9. Set a has n elements, how many subsets of a and how many proper subsets of a
- 10. Parabola (definite integral) Find the parabola that passes through the point (0,0) and the axis of symmetry is parallel to the Y axis with the opening downward, so as to minimize the area enclosed by the X axis!
- 11. If the set has 39 elements, then there are several non empty proper subsets. Remember that there is a formula, what is it?
- 12. How many subsets of set {1,2,3. N}, and how many subsets only contain five elements? Just answer the back empty
- 13. Find the set {1,2,3 n} The sum of the elements of all subsets of
- 14. Senior one mathematics compulsory 5, find the general formula In the sequence {an}, if A1 = 1 and an + 1 = 2An + 3, then the general term an of the sequence= Ask the master to give the answer, and give the steps!
- 15. Senior one mathematics compulsory five - find the general formula of the sequence! (1) 7,77,777,7777,. Find the general term formula of this sequence~ (2) The known sequence {an} is the arithmetic sequence, A1 = f (x + 1), A2 = 0, A3 = f (x-1), where f (x) = x ^ 2-4x + 2, find the general term formula It's mainly the first question! It doesn't matter if you can't work out the second one~
- 16. What I want is compulsory 3 knowledge points with examples
- 17. Fundamental theorem of plane vector If the point D is on the edge BC of the triangle ABC, and the vector CD = 4, the vector DB = m, the vector AB + N, the value of 3M + n Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent..... Urgent
- 18. In △ ABC, B = 60 ° and B2 = AC, then the shape of △ ABC is_______ .
- 19. If a line is parallel to a plane, is it parallel to all the lines in the plane or any line? What is "all" or "any"
- 20. Taking the vertex of the quadrilateral ABCD as a (m, n) B (6,1) C (3,3) d (2,5), the values of M and N are obtained, so that the quadrilateral ABCD is a right angle trapezoid