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A line passes through the point (6, -7, ...

A line passes through the point `(6, -7, -1) and (2, -3, 1).` The direction cosines of the line so directed that the angle made by it with the positive direction of x-axis is acute, are: a)`(2)/(3),(-2)/(3),(-1)/(3)` b)`(2)/(3),(2)/(3),(-1)/(3)` c)`(2)/(3),(-2)/(3),(1)/(3)` d)`(2)/(3),(2)/(3),(1)/(3)`

A

`(2)/(3),(-2)/(3),(-1)/(3)`

B

`(2)/(3),(2)/(3),(-1)/(3)`

C

`(2)/(3),(-2)/(3),(1)/(3)`

D

`(2)/(3),(-2)/(3),(1)/(3)`

Text Solution

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The correct Answer is:
A
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