Show that the straight lines whose direction cosines are given by the equations al + bm + cn = 0 and ul+ vm²+wn = 0 are parallel or perpendicular as 2²6² 2² — + - + = = 0ora²(v + w) + b²(w + u) + c²(u + v) = 0. U V W
Show that the straight lines whose direction cosines are given by the equations al + bm + cn = 0 and ul+ vm²+wn = 0 are parallel or perpendicular as 2²6² 2² — + - + = = 0ora²(v + w) + b²(w + u) + c²(u + v) = 0. U V W
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:Show that the straight lines whose direction cosines are given by the equations al + bm + cn = 0 and
ul+ vm² + wn² = 0 are parallel or perpendicular as
2² 1² ²
-+-+-= 0ora²(v + w) + b²(w + u) + c² (u + v) = 0.
V
W
U
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