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Let Aequiv(1, 2, 3) B equiv (3, 4, 5) t...

Let `Aequiv(1, 2, 3) B equiv (3, 4, 5) ` then

A

Direction ratios of AB line cannot be (2, 2, 2)

B

Direction ratios of `vec(AB)` are (-1, 1, -1)

C

Direction ratios of `vec(AB)` are (1, 1, 1)

D

Direction cosine of AB line may be
`(1/sqrt(3), -1/sqrt(3), - 1/sqrt(3))`

Text Solution

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The correct Answer is:
C
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AAKASH INSTITUTE-THREE DIMENSIONAL GEOMETRY -ASSIGNMENT SECTION - B
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