संख्या रेखा पर ( \mathbb{R}\setminus(-3,6] ) का सही निरूपण कौन सा है?
Which is the correct number-line representation of ( \mathbb{R}\setminus(-3,6] )?
Explanation opens after your attempt
Correct Answer
A. ( (-\infty,-3]\cup\(6,\infty\) )
Concept
In the complement, ( -3 ) becomes included and ( 6 ) is excluded. Open and closed endpoints switch in a complement.
Why this answer is correct
The correct answer is A. ( (-\infty,-3]\cup\(6,\infty\) ). In the complement, ( -3 ) becomes included and ( 6 ) is excluded. Open and closed endpoints switch in a complement.
Exam Tip
पूरक में ( -3 ) शामिल हो जाता है और ( 6 ) हट जाता है। पूरक लेते समय खुले और बंद सिरे बदल जाते हैं।
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