The equation | r |^ 2 - r [2 i +4 j -2 k ]-10=0 represents a
Mathematics · JEE Main · NTA Exams — Co-ordinate Geometry
The equation \(|\vec{r}|^{2}-\vec{r} \cdot[2 \hat{i}+4 \hat{j}-2 \hat{k}]-10=0\) represents a
- Plane
- Sphere of radius 4 units
- Sphere of radius 3 units
- None of these
Answer
(D) None of these
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