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Q)

Find the value of a,b whose foci are (6,4) and (-4,4) and ecentricity is 2?

$\begin{array}{1 1}(a)\;a=\large\frac{6}{7},\normalsize b=\large\frac{4\sqrt{3}}{5}\\(b)\;a=\large\frac{5}{2},\normalsize b=\large\frac{5\sqrt{3}}{2}\\(c)\;a=\large\frac{7}{5},\normalsize b=\large\frac{5\sqrt{7}}{2}\\(d)\;\text{None of these}\end{array}$

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