The line `vec r=hat i+2 hat j- hat k+lambda(2 hat i- hat k)` is `perp` to which axis?

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Q 1317701689.     The line `vec r=hat i+2 hat j- hat k+lambda(2 hat i- hat k)` is `perp` to which axis?
A

`X` Axis

B

`Y` Axis

C

` Z` Axs

D

All of the above

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Solution
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)

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