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Let hata and hatb be mutually perpendic...

Let `hata and hatb ` be mutually perpendicular unit vectors. Then for ant arbitrary `vecr`.

A

`vecr = (vecr.hata) hata + (vecr.hatb)hatb+ (vecr.(hata xx hatb))(hata xx hatb)`

B

`vecr = (vecr.hata)hata-(vecr.hatb)hatb-(vecr.(hataxxhatb))(hata xx hatb)`

C

`vecr = (vecr.hata)hata-(vecr.hatb)hatb+(vecr.(hataxxhatb))(hata xx hatb)`

D

None of these

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A
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