\(यदि (J={x:x\) एक पूर्ण संख्या है और \(4<x\leq 7}) है, तो (J) क्या है\)?
\(If (J={x:x\) is a whole number and \(4<x\leq 7}), what is (J)\)?
Explanation opens after your attempt
A. \(J=\{5,6,7\}\)
Concept
Because of (4<x), (4) is not included.
Why this answer is correct
Because of \(x\leq 7\), (7) is included, so the elements are (5,6,7).
Exam Tip
Read both inequality symbols separately. चरण 1: (4<x) के कारण (4) शामिल नहीं है। चरण 2: \(x\leq 7\) के कारण (7) शामिल है, इसलिए अवयव (5,6,7) हैं। चरण 3: दोनों असमानता चिह्नों को अलग-अलग पढ़ें।
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