Question
Download Solution PDFयदि रेखा \(\rm {x -x_1\over a}={y-y_1\over b}={z-z_1\over c}\) और \(\rm {x -x_2\over p}={y-y_2\over q}={z-z_2\over r}\) एक तल पर हैं, तो निम्न में कौन-सा सही है?
Answer (Detailed Solution Below)
Detailed Solution
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समतलीय: रेखाओं को समतलीय तब कहा जाता है यदि वे समान तल में होते हैं।
यदि दो रेखाएं \(\rm {x -x_1\over a}={y-y_1\over b}={z-z_1\over c}\) और \(\rm {x -x_2\over p}={y-y_2\over q}={z-z_2\over r}\) एक-दूसरे के समतलीय हैं, तो
\(\begin{vmatrix} x_1-x_2& y_1-y_2 & z_1-z_2\\ a& b &c \\ p& q &r \end{vmatrix} = 0\) है।
∴ विकल्प 2 सही है।
Last updated on Jul 11, 2025
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