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IF r.a = 0, r. b = 0 and r. c= 0 for som...

IF r.a = 0, r. b = 0 and r. c= 0 for some non-zero vector r. Then, the value of [a b c] is

A

0

B

`(1)/(2)`

C

1

D

2

Text Solution

Verified by Experts

The correct Answer is:
A
The given condition mean their that r is a perpendicular to all three vectors a,b and c, This is possible only if they are coplanar.
`[abc]=0`
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