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If vec(a). vec(b) = 0 and vec(a) xx vec(...

If `vec(a). vec(b) = 0 and vec(a) xx vec(b) = vec(0)` then which one of the following is correct ?

A

`vec a|| vec b`

B

`vec a _|_vec b)`

C

`vec a = vec 0` or `vec b = vec 0`

D

none of these

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A DAS GUPTA-Product of two Vectors-Exercise
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  7. If vec(A)+vec(B)+vec(C )=0 then vec(A)xx vec(B) is

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  13. If vec a+ vec b+ vec c=0 and | vec a|=3,\ | vec b|=5 and | vec c|=7 ...

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  14. If vec(a). vec(b) = 0 and vec(a) xx vec(b) = vec(0) then which one of ...

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  15. If vec a=4 hat i+6 hat ja n d vec b=3 hat j+4 hat k , then find the c...

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  16. In each of the following, fill in the blank so that the resulting stat...

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