Teaching UP TGT Mock Test Series 2025 Mathematics Three Dimensional Geometry

if the line \(\frac{x}{l}=\frac{y}{m}=\frac{z}{n}\) is the generator for the cone x2 + 2y2 - 3z2 = 0 then it satisfies the condition: 

1
 l2 + 2m2 - 3n2 = 0
2
 l2 + 2m2 
3
 l2 + 2m2 + 3n2 - 1 = 0
4
 l2 + 2m2 + 3n2 = 0
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