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I : If (a + b) c = (a - b) c = 0 then (a...

I : If (a + b) c = (a - b) c = 0 then `(a xx b) xx c = 0`
II : If `a xx (b xx c)` is a vector perpendicular to a,b,c

A

only I is ture

B

Only II is ture

C

both I and II are true

D

Neither I nor II are true

Text Solution

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The correct Answer is:
A
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