Q .     The component of the vector `vecA = a_x i +a_yj +a_zk` in the direction `i - j`

EAMCET
A

`a_x -a_y +a_z`

B

`a_x -a_y`

C

` (a_x-a_y)/(sqrt2)`

D

`a_x -a_y +a_z`

HINT

Use `(A.B) / |B|`
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