संख्या रेखा पर (\(-\infty,4]\setminus[-2,1\)) को कौन-सा interval दर्शाता है?

Which interval represents (\(-\infty,4]\setminus[-2,1\)) on the number line?

Explanation opens after your attempt
Correct Answer

A. (\(-\infty,-2\)\cup[1,4])

Step 1

Concept

The removed part removes (-2) but does not remove (1). In exams, check the remaining endpoints separately in set difference.

Step 2

Why this answer is correct

The correct answer is A. (\(-\infty,-2\)\cup[1,4]). The removed part removes (-2) but does not remove (1). In exams, check the remaining endpoints separately in set difference.

Step 3

Exam Tip

हटाया गया भाग (-2) को हटाता है पर (1) को नहीं हटाता। परीक्षा में set difference में बचने वाले endpoints अलग से जाँचें।

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Mathematics Answer, Explanation and Revision Hints

संख्या रेखा पर (\(-\infty,4]\setminus[-2,1\)) को कौन-सा interval दर्शाता है? / Which interval represents (\(-\infty,4]\setminus[-2,1\)) on the number line?

Correct Answer: A. (\(-\infty,-2\)\cup[1,4]). Explanation: हटाया गया भाग (-2) को हटाता है पर (1) को नहीं हटाता। परीक्षा में set difference में बचने वाले endpoints अलग से जाँचें। / The removed part removes (-2) but does not remove (1). In exams, check the remaining endpoints separately in set difference.

Which concept should I revise for this Mathematics MCQ?

The removed part removes (-2) but does not remove (1). In exams, check the remaining endpoints separately in set difference.

What exam hint can help solve this Mathematics question?

हटाया गया भाग (-2) को हटाता है पर (1) को नहीं हटाता। परीक्षा में set difference में बचने वाले endpoints अलग से जाँचें।