यदि \(\binom{n}{2}=190\) है तो (n) का मान क्या है?
If \(\binom{n}{2}=190\), what is the value of (n)?
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Correct Answer
D. (20)
Concept
\(\binom{20}{2}=190\). Therefore (n=20) is correct.
Why this answer is correct
The correct answer is D. (20). \(\binom{20}{2}=190\). Therefore (n=20) is correct.
Exam Tip
\(\binom{20}{2}=190\) होता है। इसलिए (n=20) सही है।
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