यदि \(^{n}P_r=^{n}P_{n-r}\) हर (r) के लिए नहीं होता, तो इसका मुख्य कारण क्या है?
If \(^{n}P_r=^{n}P_{n-r}\) is not true for every (r), what is the main reason?
Explanation opens after your attempt
A. Permutation में complement symmetry सामान्यतः नहीं होतीComplement symmetry generally does not hold in permutations
Concept
Complement symmetry is a property of combinations, not permutations. In exams keep identities of \(^{n}C_r\) and \(^{n}P_r\) separate.
Why this answer is correct
The correct answer is A. Permutation में complement symmetry सामान्यतः नहीं होती / Complement symmetry generally does not hold in permutations. Complement symmetry is a property of combinations, not permutations. In exams keep identities of \(^{n}C_r\) and \(^{n}P_r\) separate.
Exam Tip
Complement symmetry combination की property है, permutation की नहीं। परीक्षा में \(^{n}C_r\) और \(^{n}P_r\) की identities अलग रखें।
Login to save your score, XP, coins and progress.