JEE Math Practice Question
The length of the perpendicular from the point $$(1,-2,5)$$ on the line passing through $$(1,2,4)$$ and parallel to the line $$x+y-z=0=x-2 y+3 z-5$$ is :
- A.$$\sqrt{\frac{21}{2}}$$
- B.$$\sqrt{\frac{9}{2}}$$
- C.$$\sqrt{\frac{73}{2}}$$
- D.1
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