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If |a xx b| = |a.b| then (a,b) =...

If `|a xx b| = |a.b|` then (a,b) =

A

0

B

`pi`

C

`pi//2`

D

`pi//4`

Text Solution

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The correct Answer is:
D
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  7. Let a,b,c represent respectively BC, CA and AB where ABC is a triangle...

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  9. If a.b = a.c, a xx b = a xx c then

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  10. a != 0, b != 0, C != 0, a xx b = 0, b xx c implies a xx c =

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  12. If a xx b = c xx d, a xx c = b xx d then

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  13. If a,b,c be unit vectors such that a.b = a.c = 0 and the angle between...

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  14. Let u = I + j, v = I - j, w = I + 2j + 3k. If n a unit vector such tha...

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