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Question
Choose the correct alternative:
The area of quadrilateral formed with foci of the hyperbolas `x^2/"a"^2 - y^2/"b"^2` = 1 and `1x^2/"a"^2 - y^2/"b"^2` = – 1
Options
4(a2 + b2)
2(a2 + b2)
2(a2 + b2)
`1/2 ("a"^2 + b"^2)`
Solution
2(a2 + b2)
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