पास्कल संबंध \(^{n}C_r=^{n-1}C_r+^{n-1}C_{r-1}\) में \(^{n-1}C_r\) किस स्थिति को दिखाता है?
In Pascal's relation \(^{n}C_r=^{n-1}C_r+^{n-1}C_{r-1}\) what does \(^{n-1}C_r\) represent?
Explanation opens after your attempt
Correct Answer
A. विशेष वस्तु को न चुननाNot choosing the special object
Concept
Choosing (r) from remaining (n-1) after excluding one fixed object is \(^{n-1}C_r\). In exams split cases into included and excluded.
Why this answer is correct
The correct answer is A. विशेष वस्तु को न चुनना / Not choosing the special object. Choosing (r) from remaining (n-1) after excluding one fixed object is \(^{n-1}C_r\). In exams split cases into included and excluded.
Exam Tip
एक निश्चित वस्तु को छोड़कर बाकी (n-1) में से (r) चुनना \(^{n-1}C_r\) है। परीक्षा में मामलों को शामिल और अलग में बाँटें।
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