\(समुच्चय (X={x:x\in \mathbb{N}\) और \(x\le 10,\ x\) न तो अभाज्य है न भाज्य}) का सूची रूप क्या है?
\(What is the roster form of (X={x:x\in \mathbb{N}\) and \(x\le 10,\ x\) is neither prime nor composite})?
Explanation opens after your attempt
Correct Answer
A. \(X=\{1\}\)
Concept
Among natural numbers up to (10), (1) is neither prime nor composite.
Why this answer is correct
(2,3,5,7) are prime and (4,6,8,9,10) are composite.
Exam Tip
Remember the special status of (1); it is not prime. चरण 1: (10) तक की प्राकृत संख्याओं में (1) न अभाज्य है न भाज्य। चरण 2: (2,3,5,7) अभाज्य हैं और (4,6,8,9,10) भाज्य हैं। चरण 3: (1) की विशेष स्थिति याद रखें, यह अभाज्य नहीं माना जाता।
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