यदि \(A={x:x\) शब्द (MOON) के अलग-अलग अक्षर हैं(}), तो (\mathcal{P}(A)) में कितने तत्व होंगे?
If \(A={x:x\) is a distinct letter of the word (MOON)(}), how many elements will (\mathcal{P}(A)) have?
Explanation opens after your attempt
B. (8)
Concept
The distinct letters of (MOON) are (M,O,N), so (n(A)=3). Therefore the power set has \(2^3=8\) elements.
Why this answer is correct
The correct answer is B. (8). The distinct letters of (MOON) are (M,O,N), so (n(A)=3). Therefore the power set has \(2^3=8\) elements.
Exam Tip
(MOON) के अलग-अलग अक्षर (M,O,N) हैं इसलिए (n(A)=3)। अतः घात समुच्चय में \(2^3=8\) तत्व होंगे।
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