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IF a = x hati + y hatj + z hatk the...

IF `a = x hati + y hatj + z hatk ` then `( a xx hati) . ( hati + hatj ) + ( a xx hatj ) . ( hatj + hatk ) + ( a xx hatk ) . ( hatk + hati ) =`

A

x -y + z

B

x +y+ z

C

x + y -z

D

-x + y+ z

Text Solution

Verified by Experts

The correct Answer is:
B
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