The angle of intersection of ellipse $\frac{{{x^2}}}{{{a^2}}} + \frac{{{y^2}}}{{{b^2}}} = 1$ and circle ${x^2} + {y^2} = ab$, is
The angle of intersection of ellipse $\frac{{{x^2}}}{{{a^2}}} + \frac{{{y^2}}}{{{b^2}}} = 1$ and circle ${x^2} + {y^2} = ab$, is
- A
${\tan ^{ - 1}}\left( {\frac{{a - b}}{{ab}}} \right)$
- B
${\tan ^{ - 1}}\left( {\frac{{a + b}}{{ab}}} \right)$
- C
${\tan ^{ - 1}}\left( {\frac{{a + b}}{{\sqrt {ab} }}} \right)$
- D
${\tan ^{ - 1}}\left( {\frac{{a - b}}{{\sqrt {ab} }}} \right)$
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