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Question
The d.c's of a line whose direction ratios are 2, 3, –6, are ______.
Options
`2/7, 3/7, (-6)/7`
`(-2)/7, 3/7, (-6)/7`
`2/7, (-3)/7, (-6)/7`
`(-2)/7, (-3)/7, (-6)/7`
MCQ
Fill in the Blanks
Solution
The d.c's of a line whose direction ratios are 2, 3, –6, are `underlinebb(2/7, 3/7, (-6)/7)`.
Explanation:
`vecr = 2hati + 3hatj - 6hatk`
DC's = `2/7, 3/7, (-6)/7`
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