\(^{15}P_3\) को \(^{15}C_3\) से जोड़ने पर कौन-सा factor लगता है?
When connecting \(^{15}P_3\) with \(^{15}C_3\), which factor is used?
Explanation opens after your attempt
A. (3!)
Concept
First choose (3) objects and arrange them in (3!) ways. In exams remember \(^{n}P_3=^{n}C_3\cdot3!\).
Why this answer is correct
The correct answer is A. (3!). First choose (3) objects and arrange them in (3!) ways. In exams remember \(^{n}P_3=^{n}C_3\cdot3!\).
Exam Tip
पहले (3) वस्तुएं चुनकर उन्हें (3!) ways में arrange करते हैं। परीक्षा में \(^{n}P_3=^{n}C_3\cdot3!\) याद रखें।
Login to save your score, XP, coins and progress.
