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A horizontal plane 4x-3y+7z=0 is given. ...

A horizontal plane `4x-3y+7z=0` is given. Find a line of greatest slope passes through the point `(2, 1, 1)` in the plane `2x+y-5z=0`.

A

`(3)/(sqrt(11)), -(1)/(sqrt(11)), (1)/(sqrt(11))`

B

`(3)/(sqrt(11)), (1)/(sqrt(11)), -(1)/(sqrt(11))`

C

`-(3)/(sqrt(11)), (1)/(sqrt(11)), (1)/(sqrt(11))`

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
(a)
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