Home
Class 12
MATHS
Statement-1 P(A)nnP(B)=P(AnnB), where P(...

Statement-1 `P(A)nnP(B)=P(AnnB)`, where P(A) is power set of set A.
Statement-2 `P(A)uuP(B)=P(AuuB)`.

A

Statement-1 is true, Statement-2 is true, Statement-2 is a correct explanation for Statement-1

B

Statement-1 is true, Statement-2 is true, Statement-2 is not a correct explanation for Statement-1

C

Statement-1 is true, Statement-2 is false

D

Statement-1 is false, Statement-2 is true

Text Solution

AI Generated Solution

The correct Answer is:
To solve the problem, we need to analyze both statements regarding power sets and their operations. ### Step 1: Analyze Statement 1 **Statement 1:** \( P(A) \cap P(B) = P(A \cap B) \) 1. **Understanding the Power Set:** The power set \( P(A) \) is the set of all subsets of \( A \). Similarly, \( P(B) \) is the set of all subsets of \( B \). 2. **Right-Hand Side (RHS):** The right-hand side \( P(A \cap B) \) is the power set of the intersection of sets \( A \) and \( B \). This means it contains all subsets of the intersection of \( A \) and \( B \). 3. **Left-Hand Side (LHS):** The left-hand side \( P(A) \cap P(B) \) consists of all subsets that are in both \( P(A) \) and \( P(B) \). This means these subsets must be subsets of both \( A \) and \( B \), which implies they are subsets of \( A \cap B \). 4. **Conclusion for Statement 1:** Since every subset in \( P(A \cap B) \) is also in \( P(A) \cap P(B) \) and vice versa, we conclude that \( P(A) \cap P(B) = P(A \cap B) \). Thus, Statement 1 is **True**. ### Step 2: Analyze Statement 2 **Statement 2:** \( P(A) \cup P(B) = P(A \cup B) \) 1. **Right-Hand Side (RHS):** The right-hand side \( P(A \cup B) \) is the power set of the union of sets \( A \) and \( B \). This contains all subsets of the union of \( A \) and \( B \). 2. **Left-Hand Side (LHS):** The left-hand side \( P(A) \cup P(B) \) consists of all subsets that are either in \( P(A) \) or in \( P(B) \). This means it includes all subsets of \( A \) and all subsets of \( B \), but not necessarily all subsets of \( A \cup B \). 3. **Counterexample:** Let's take \( A = \{1\} \) and \( B = \{2\} \). - \( P(A) = \{\emptyset, \{1\}\} \) - \( P(B) = \{\emptyset, \{2\}\} \) - \( P(A) \cup P(B) = \{\emptyset, \{1\}, \{2\}\} \) - \( A \cup B = \{1, 2\} \) and \( P(A \cup B) = \{\emptyset, \{1\}, \{2\}, \{1, 2\}\} \) - Clearly, \( P(A) \cup P(B) \neq P(A \cup B) \). 4. **Conclusion for Statement 2:** Since we found a counterexample, Statement 2 is **False**. ### Final Conclusion - **Statement 1:** True - **Statement 2:** False

To solve the problem, we need to analyze both statements regarding power sets and their operations. ### Step 1: Analyze Statement 1 **Statement 1:** \( P(A) \cap P(B) = P(A \cap B) \) 1. **Understanding the Power Set:** The power set \( P(A) \) is the set of all subsets of \( A \). Similarly, \( P(B) \) is the set of all subsets of \( B \). 2. **Right-Hand Side (RHS):** The right-hand side \( P(A \cap B) \) is the power set of the intersection of sets \( A \) and \( B \). This means it contains all subsets of the intersection of \( A \) and \( B \). 3. **Left-Hand Side (LHS):** The left-hand side \( P(A) \cap P(B) \) consists of all subsets that are in both \( P(A) \) and \( P(B) \). This means these subsets must be subsets of both \( A \) and \( B \), which implies they are subsets of \( A \cap B \). ...
Promotional Banner

Topper's Solved these Questions

  • SETS, RELATIONS AND FUNCTIONS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Subjective Type Questions)|15 Videos
  • SETS, RELATIONS AND FUNCTIONS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|12 Videos
  • SETS, RELATIONS AND FUNCTIONS

    ARIHANT MATHS ENGLISH|Exercise Exercise (Matching Type Questions)|2 Videos
  • SEQUENCES AND SERIES

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|38 Videos
  • THE STRAIGHT LINES

    ARIHANT MATHS ENGLISH|Exercise Exercise (Questions Asked In Previous 13 Years Exam)|17 Videos

Similar Questions

Explore conceptually related problems

Let A={a,b,{a,b}}, where P(A) is the power set of A, then P(A)=

Let A and B be two events such that P(A cup B)=P(A cap B) . Then, Statement-1: P(A cap overline(B))=P(overline(A) cap B)=0 Statement-2: P(A)+P(B)=1

Statement-1 If A and B be the event in a sample space, such that P(A)=0.3 and P(B)=0.2, then P(Acapoverline(B)) cannot be found. Statement-2 P(Acapoverline(B))=P(A)+P(overline(B))-P(Acapoverline(B))

Let A and B be two events such that P(A) gt 0 . Statement-1 : If P(A) + P(B) gt 1 , then P(B//A)ge 1-P(overline(B))//P(A) Statement-2 : If P(A//overline(B))ge P(A), " then " P(A) ge P(A//B) .

Each question has four choices a, b, c, and d, out of which only one is correct. Each question contains STATEMENT 1 and STATEMENT 2. Both the statements are TRUE and statement 2 is the correct explanation of Statement 1. Both the statements are TRUE but Statement 2 is NOT the correct explanation of Statement 1. Statement 1 is TRUE and Statement 2 is FALSE. Statement 1 is FALSE and Statement 2 is TRUE. Statement 1: For events Aa n dB of sample space if P(A/B)geqP(A) , then P(B/A)geqP(B)dot Statement 2: P(A/B)=(P(AnnB))/(P(B)) , (P(B)!=0)dot

For any two sets A and B, prove that : P(A)=P(B)rArrA=B

If A and B are two events, then P(A) + P(B) = 2P(AnnB) if and only if A. P(A)+P(B)=1 B. P(A)=P(B) C. P(A)=P(B) D. None of these

Let for two events A and B , P(A)=p and P(B)=q . Statement-1 : The probability that exactly one of the event A and B occurs is p+q-2pq Statement-2 : P(AcupB)=P(A)+P(B)-P(AcapB) .

If Aa n dB are two events, the probability that exactly one of them occurs is given by P(A)+P(B)-2P(AnnB) P(Ann B )+P( A nnB) P(AuuB)-P(AnnB) P( A )+P( B )-2P( A nn B )

A, B, C be three sets such that n(A) = 2, n(B) 3,n(C)=4 . If P(x) denotes power set of x. K=(n(P(P(C))))/(n(P(P(A))*n(P(P(B)))) . Sum of digits of K is ______