Boy Mow Chau's answer to Candice lim's Junior College 1 H2 Maths Singapore question.
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dot product of direction vectors = 0.
<=> lines are perpendicular.
no unique solution for lambda & mu
<=> no intersection point
no intersection point & lines not parallel
<=> skew lines.
<=> lines are perpendicular.
no unique solution for lambda & mu
<=> no intersection point
no intersection point & lines not parallel
<=> skew lines.
Date Posted:
2 years ago
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no solution for lambda & mu
<=> no intersection point
1 unique solution for lambda & mu
<=> 1 intersection point
infinite solution for lambda & mu
<=> the 2 lines coincide !!