यदि \(A\subseteq B\), तो \(A\cup B\) किसके बराबर होगा?
If \(A\subseteq B\), then \(A\cup B\) is equal to what?
Explanation opens after your attempt
Correct Answer
B. (B)
Concept
When every element of (A) is already in (B), union adds nothing new. Hence \(A\cup B=B\).
Why this answer is correct
The correct answer is B. (B). When every element of (A) is already in (B), union adds nothing new. Hence \(A\cup B=B\).
Exam Tip
जब (A) का हर अवयव (B) में है, तो मिलाने पर नया अवयव नहीं आता। इसलिए \(A\cup B=B\)।
Login to save your score, XP, coins and progress.