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From a pt A common tangents are drawn to...

From a pt A common tangents are drawn to a circle `x^2 +y^2 = a^2/2 and y^2 = 4ax`. Find the area of the quadrilateral formed by common tangents, chord of contact of circle and chord of contact of parabola.

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The correct Answer is:
`(15a^(2))/4`
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