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in Mathematics by (35.1k points)

l1, m1, n1 और l2, m2, n2 दिक् कोज्याएँ वाली दो सरल रेखाओं के समांतर होने के लिए शर्त है

(A) \(l_{1} l_{2}+m_{1} m_{2}+n_{1} n_{2}=0\)

(B) \(\frac{l_{1}}{l_{2}}+\frac{m_{1}}{m_{2}}+\frac{n_{1}}{n_{2}}=0\)

(C) \(\frac{l_{1}}{l_{2}}=\frac{m_{1}}{m_{2}}=\frac{n_{1}}{n_{2}}\)

(D) इनमें से कोई नहीं

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1 Answer

+1 vote
by (36.2k points)

सही विकल्प है (C) \(\frac{l_{1}}{l_{2}}=\frac{m_{1}}{m_{2}}=\frac{n_{1}}{n_{2}}\)

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