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The curve defined by `sqrt((x)/(a))+sqrt((y)/(b))=1` gives a part of parabola bounded by rectangle `0lexlea,0leyleb`. That has x - axis as tangent at A(a,0) and y- axis as tangent at B(0.b). On the basis of above information , answer the following questions : The corrdiantes of focus of parabola is -A. `((ab)/(a+b),(ab)/(a+b))`B. `((ab^(2))/(a^(2)+b^(2)),(a^(2)b)/(a^(2)+b^(2)))`C. `((a^(2)b)/(a^(2)+b^(2)),(ab^(2))/(a^(2)+b^(2)))`D. `((a^(2)b^(2))/(a^(2)+b^(2)),(a^(2)b^(2))/(a^(2)+b^(2)))`

Answer» Correct Answer - B


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