यदि \(\binom{n}{7}=\binom{n}{11}\) है तो (n) का मान क्या होगा?
If \(\binom{n}{7}=\binom{n}{11}\), what will be the value of (n)?
Explanation opens after your attempt
Correct Answer
C. (18)
Concept
Here \(\binom{n}{r}=\binom{n}{s}\) gives (r+s=n). Hence (7+11=18).
Why this answer is correct
The correct answer is C. (18). Here \(\binom{n}{r}=\binom{n}{s}\) gives (r+s=n). Hence (7+11=18).
Exam Tip
\(\binom{n}{r}=\binom{n}{s}\) में यहां (r+s=n) होगा। इसलिए (7+11=18) है।
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