A) circle
B) ellipse
C) cone
D) sphere
Correct Answer: D
Solution :
The given equation is \[{{\overrightarrow{r}}^{2}}-2\,\overrightarrow{r}\cdot \overrightarrow{c}+h=0,\]\[|\overrightarrow{c}|\,\,>\sqrt{h}\] This is a equation of sphere in diameter form i.e., \[(\overrightarrow{r}-\overrightarrow{a})\cdot (\overrightarrow{r}-\overrightarrow{b})=0\]You need to login to perform this action.
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