Question
Mathematics Question on Shortest Distance between Two Lines
The shortest distance between the lines −6x+7=7y−6=z and 27−x=y−2=z−6 is
A
229
B
1
C
2937
D
229
Answer
229
Explanation
Solution
−6x+7=7y−6=1z−0:
point (−7,6,0) dr’s −6,7,1
2x−7=−1y−2=−1z−6:
point (7,2,6) dr’s 2,−1,−1
Shortest distance
=∣∣(−7+1)2+(6−2)2+(6−14)2∣∣14−62−47−161−1∣∣∣∣=229