यदि \(A=\{1,4,9\}\) है तो ({1,9}) के लिए सही कथन कौन सा है?
If \(A=\{1,4,9\}\), which statement is correct for ({1,9})?
Explanation opens after your attempt
B. \({1,9}\in \mathcal{P}(A)\)
Concept
({1,9}) is a subset of (A). Therefore it is an element of (\mathcal{P}(A)).
Why this answer is correct
The correct answer is B. \({1,9}\in \mathcal{P}(A)\). ({1,9}) is a subset of (A). Therefore it is an element of (\mathcal{P}(A)).
Exam Tip
({1,9}) (A) का उपसमुच्चय है। इसलिए यह (\mathcal{P}(A)) का तत्व है।
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