यदि \( \binom{n}{2}=45 \) है, तो \( \binom{n}{4} \) का मान क्या होगा?
If \( \binom{n}{2}=45 \), what is the value of \( \binom{n}{4} \)?
Explanation opens after your attempt
Correct Answer
C. (210)
Concept
Since \( \binom{10}{2}=45 \), (n=10), so \( \binom{10}{4}=210 \). First find (n), then evaluate the required combination.
Why this answer is correct
The correct answer is C. (210). Since \( \binom{10}{2}=45 \), (n=10), so \( \binom{10}{4}=210 \). First find (n), then evaluate the required combination.
Exam Tip
\( \binom{10}{2}=45 \) से (n=10), इसलिए \( \binom{10}{4}=210 \)। पहले (n) निकालें, फिर माँगा गया संयोजन रखें।
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