यदि \(^{10}C_3=^{10}C_k\) और \(k\neq3\) हो तो (k) का मान क्या होगा?
If \(^{10}C_3=^{10}C_k\) and \(k\neq3\) what is the value of (k)?
Explanation opens after your attempt
Correct Answer
C. (7)
Concept
By \(^{n}C_r=^{n}C_{n-r}\) we get (k=10-3=7). In exams check the complementary index in equal combinations.
Why this answer is correct
The correct answer is C. (7). By \(^{n}C_r=^{n}C_{n-r}\) we get (k=10-3=7). In exams check the complementary index in equal combinations.
Exam Tip
संबंध \(^{n}C_r=^{n}C_{n-r}\) से (k=10-3=7) होगा। परीक्षा में समान combination में पूरक सूचकांक देखें।
Login to save your score, XP, coins and progress.