यदि \(\binom{n}{2}=78\) है तो (n) का मान क्या है?
If \(\binom{n}{2}=78\), what is the value of (n)?
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Correct Answer
C. (13)
Concept
\(\binom{13}{2}=78\). Therefore (n=13) is correct.
Why this answer is correct
The correct answer is C. (13). \(\binom{13}{2}=78\). Therefore (n=13) is correct.
Exam Tip
\(\binom{13}{2}=78\) होता है। इसलिए (n=13) सही है।
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