कौन-सा interval (\(-\infty,4]\setminus[-1,2\)) को संख्या रेखा पर दर्शाता है?
Which interval represents (\(-\infty,4]\setminus[-1,2\)) on the number line?
Explanation opens after your attempt
Correct Answer
A. (\(-\infty,-1\)\cup[2,4])
Concept
Removing ([-1,2)) removes (-1) but keeps (2). In exams, check endpoints carefully in set difference.
Why this answer is correct
The correct answer is A. (\(-\infty,-1\)\cup[2,4]). Removing ([-1,2)) removes (-1) but keeps (2). In exams, check endpoints carefully in set difference.
Exam Tip
([-1,2)) हटाने पर (-1) भी हटता है पर (2) बचता है। परीक्षा में set difference में हटाए गए interval के endpoints को ध्यान से जाँचें।
Login to save your score, XP, coins and progress.