Question:medium
A straight line through the point (1,-1,0) meets the line $\frac{x-1}{1}=\frac{y+1}{1}=\frac{z-1}{-1}$ at right angle. Its equation is ________.
A straight line through the point (1,-1,0) meets the line $\frac{x-1}{1}=\frac{y+1}{1}=\frac{z-1}{-1}$ at right angle. Its equation is ________.
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Use the dot product of direction vectors for perpendicular lines.
Updated On: Jun 24, 2026
- $\frac{x-1}{1}=\frac{y+1}{1}=\frac{z}{2}$
- $\frac{x-1}{1}=\frac{y-1}{1}=\frac{z}{4}$
- $\frac{x-1}{-1}=\frac{y-1}{1}=\frac{z}{6}$
- $\frac{x-1}{-1}=\frac{y-1}{-1}=\frac{z}{3}$
- $\frac{x-1}{1}=\frac{y+1}{1}=\frac{z}{-2}$
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The Correct Option is A
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