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If a&b are the eccentricities of the hyperbolas xy=-25 and x^2-y^2=16 then(a+b)^2 equals. (1)2 (2)4 (3)8 (4)6 {*plese explen*}
the above hyperbolas represent rectangular hyperbolas...so the eccentricity is always √2. => a=b=√2 (a+b)2 = (2√2)2 = 8 hence the answer is option 3. plz approve my ans.. priyanka tata
the above hyperbolas represent rectangular hyperbolas...so the eccentricity is always √2.
=> a=b=√2
(a+b)2 = (2√2)2 = 8
hence the answer is option 3.
plz approve my ans..
priyanka tata
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