\(कौन-सा विकल्प (T={x:x\) एक प्राकृतिक संख्या है और \(3\leq x\leq 7}) का सूची रूप है\)?
\(Which option is the roster form of (T={x:x\) is a natural number and \(3\leq x\leq 7})\)?
Explanation opens after your attempt
A. \(T=\{3,4,5,6,7\}\)
Concept
\(3\leq x\leq 7\) का अर्थ है (3) और (7) दोनों शामिल हैं। / \(3\leq x\leq 7\) means both (3) and (7) are included.
Why this answer is correct
इनके बीच की प्राकृतिक संख्याएँ (3,4,5,6,7) हैं। / The natural numbers in this range are (3,4,5,6,7).
Exam Tip
\(\leq\) वाले सिरों को छोड़ना नहीं चाहिए। / Do not leave out endpoints when \(\leq\) is used.
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