The distance of the point (1,-5,9) from the plane

Question:

The distance of the point $(1,-5,9)$ from the plane $x-y+z=5$ measured along a straight from the origin is :

  1. $3 \sqrt{5}$

  2. $10 \sqrt{3}$

  3. $5 \sqrt{3}$

  4. $3 \sqrt{10}$


Correct Option: , 2

Solution:

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