JEE Math Practice Question
If the image of the point P(1, –2, 3) in the plane, 2x + 3y – 4z + 22 = 0 measured parallel to the line, $${x \over 1} = {y \over 4} = {z \over 5}$$ is Q, then PQ is equal to:
- A.$$2\sqrt {42} $$
- B.$$\sqrt {42} $$
- C.$$6\sqrt 5 $$
- D.$$3\sqrt 5 $$
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