(13) बिंदुओं में से (2) बिंदु चुनकर कितने रेखाखंड बनाए जा सकते हैं?
How many line segments can be formed by choosing (2) points from (13) points?
Explanation opens after your attempt
C. (78)
Concept
A line segment needs (2) points. Therefore \(\binom{13}{2}=78\).
Why this answer is correct
The correct answer is C. (78). A line segment needs (2) points. Therefore \(\binom{13}{2}=78\).
Exam Tip
एक रेखाखंड के लिए (2) बिंदु चाहिए। अतः \(\binom{13}{2}=78\) होगा।
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