यदि (n\(A^c\)=58) और (n(U)=132) है, तो (n(A)) कितना होगा?
If (n\(A^c\)=58) and (n(U)=132), what is (n(A))?
Explanation opens after your attempt
B. (74)
Concept
(A) and \(A^c\) together form (U), so (n(A)=132-58=74). In complement questions, always check the universal set.
Why this answer is correct
The correct answer is B. (74). (A) and \(A^c\) together form (U), so (n(A)=132-58=74). In complement questions, always check the universal set.
Exam Tip
(A) और \(A^c\) मिलकर (U) बनाते हैं, इसलिए (n(A)=132-58=74)। पूरक के प्रश्न में सार्वत्रिक समुच्चय जरूर देखें।
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