(12) बिंदुओं से कितनी सीधी रेखाएं बनेंगी यदि कोई (3) बिंदु एक ही रेखा पर नहीं हैं?
How many straight lines can be formed from (12) points if no (3) points lie on the same line?
Explanation opens after your attempt
B. (66)
Concept
A line is formed by (2) points. Hence \(\binom{12}{2}=66\) is correct.
Why this answer is correct
The correct answer is B. (66). A line is formed by (2) points. Hence \(\binom{12}{2}=66\) is correct.
Exam Tip
एक रेखा (2) बिंदुओं से बनती है। इसलिए \(\binom{12}{2}=66\) सही है।
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