JEE Math Practice Question
The length of the projection of the line segment joining the points (5, -1, 4) and (4, -1, 3) on the plane, x + y + z = 7 is :
- A.$$\sqrt {{2 \over 3}} $$
- B.$${2 \over {\sqrt 3 }}$$
- C.$${2 \over 3}$$
- D.$${1 \over 3}$$
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