यदि \(A=\{1,2\}\) और \(B=\{2,3\}\), तो \(P(A)\cup P(B)\) में कितने अवयव हैं?
If \(A=\{1,2\}\) and \(B=\{2,3\}\), how many elements are in \(P(A)\cup P(B)\)?
Explanation opens after your attempt
Correct Answer
B. (6)
Concept
(P(A)) and (P(B)) have \(\varnothing\) and ({2}) in common, so the total is (4+4-2=6). Remove duplicates in the union of power sets.
Why this answer is correct
The correct answer is B. (6). (P(A)) and (P(B)) have \(\varnothing\) and ({2}) in common, so the total is (4+4-2=6). Remove duplicates in the union of power sets.
Exam Tip
(P(A)) और (P(B)) में \(\varnothing\) तथा ({2}) समान हैं, इसलिए कुल (4+4-2=6)। पावर सेटों के संघ में दोहराव हटाएं।
Login to save your score, XP, coins and progress.