यदि \(U=\mathbb{R}\) और \(A={x:x \in \mathbb{R},\ x\ge 3}\), तो \(A^{c}\) क्या है?
If \(U=\mathbb{R}\) and \(A={x:x \in \mathbb{R},\ x\ge 3}\), what is \(A^{c}\)?
Explanation opens after your attempt
Correct Answer
B. \({x:x \in \mathbb{R},\ x<3}\)
Concept
(A) contains (3) and all greater real numbers, so the complement is (x<3). Change the equality part carefully in inequalities.
Why this answer is correct
The correct answer is B. \({x:x \in \mathbb{R},\ x<3}\). (A) contains (3) and all greater real numbers, so the complement is (x<3). Change the equality part carefully in inequalities.
Exam Tip
(A) में (3) सहित उससे बड़ी वास्तविक संख्याएं हैं, इसलिए पूरक (x<3) है। असमानता में बराबर का चिन्ह ध्यान से बदलें।
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