Q86.Let π΄= 1, 2, 3, 4, 5, 6, 7 and π΅= 3, 6, 7, 9. Then the number of elements in the set πΆβπ΄: πΆβ©π΅β π is ______
What This Question Tests
This question tests the understanding of set operations and the ability to use the complement principle to count subsets satisfying a given condition, requiring a small logical deduction.
Concepts Tested
Formulas Used
Number of subsets of a set with n elements = 2^n
π NCERT Sections This Tests
8.17 β Complete Each Synthesis By Giving Missing Starting Material, Reagent Or Products
Chemistry Class 12 Β· Chapter 8
8.17 Complete each synthesis by giving missing starting material, reagent or products
14.1 β In An N-Type Silicon, Which Of The Following Statement Is True:
Physics Class 12 Β· Chapter 14
14.1 In an n-type silicon, which of the following statement is true: (a) Electrons are majority carriers and trivalent atoms are the dopants. (b) Electrons are minority carriers and pentavalent atoms are the dopants. (c) Holes are minority carriers and pentavalent atoms are the dopants. (d) Holes are majority carriers and trivalent atoms are the dopants.
14.2 β Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 Β· Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
π Question Details
- Chapter
- Sets Relations Functions
- Topic
- Set operations, Subsets
- Year
- 2022
- Shift
- 26 Jul Shift 2
- Q Number
- Q86
- Type
- Numerical
- NCERT Ref
- Class 11 Mathematics Ch 1: Sets
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