A) \[{{\tan }^{-1}}\,\sqrt{\frac{{{r}^{2}}-{{b}^{2}}}{{{a}^{2}}-{{r}^{2}}}}\]
B) \[{{\tan }^{-1}}\,\sqrt{\frac{{{r}^{2}}-{{a}^{2}}}{{{b}^{2}}-{{r}^{2}}}}\]
C) \[{{\tan }^{-1}}\,\sqrt{\frac{{{r}^{2}}-{{b}^{2}}}{{{r}^{2}}-{{a}^{2}}}}\]
D) \[{{\tan }^{-1}}\,\sqrt{\frac{{{r}^{2}}-{{a}^{2}}}{{{r}^{2}}-{{b}^{2}}}}\]
Correct Answer: A
Solution :
Let equation of circle is \[t=0\].You need to login to perform this action.
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