\(समुच्चय (E_1={x \in \mathbb{N}:x\) विषम है और \(x\leq 11}) का रोस्टर रूप कौन सा है\)?
\(Which is the roster form of (E_1={x \in \mathbb{N}:x\) is odd and \(x\leq 11})\)?
Explanation opens after your attempt
B. ({1,3,5,7,9,11})
Concept
(11) तक विषम प्राकृतिक संख्याएँ लिखें। / Write odd natural numbers up to (11).
Why this answer is correct
\(\leq 11\) होने से (11) शामिल होगा। / Since the condition is \(\leq 11\), (11) is included.
Exam Tip
सीमा में बराबरी हो तो अंतिम मान को अवश्य जाँचें। / When equality is included in the boundary, check the endpoint.
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