Q.

The dc’s of the line passing through P (2,3,−1) and the origin are

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a

214,314,114

b

214,−314,114

c

−214,−314,114

d

214`,−314,−114

answer is C.

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Detailed Solution

D.r’s of OP = (2,3,-1)D.c’s of OP = 214,314,−114
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