If the vectors veca = hati - hatj + 2 ha...

If the vectors `veca = hati - hatj + 2 hatk, vecb = 2 hati + 4 hatj + hatk and vecc = lamda hati + hatj + mu hatk ` aer mutually orthogonal, then `(lamda, mu)=`

A

`(-3,2)`

B

`(2,-3)`

C

`(-2,3)`

D

`(3,-2).`

Verified by Experts

The correct Answer is:

A

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