The area of a parallelogram whose diagon...

The area of a parallelogram whose diagonals are `3hati + 4 hatj,hati + hatj+ hatk` is a) `sqrt(26)` b) `sqrt(26)/(2)` c) `sqrt(26)/(3)` d) none of these

A

`sqrt(26)`

B

`sqrt(26)/(2)`

C

`sqrt(26)/(3)`

D

none of these

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