Q.
The coordinates of a point P are (3,12,4) with respect to origin O, then the direction cosines of OP are
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a
3,12,4
b
14,13,12
c
313,−113,213
d
313,1213,413
answer is D.
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Detailed Solution
Required direction cosines are 332+122+42,1232+122+42,432+122+42 i.e., 313,1213,413
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