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Two circles are given such that they nei...

Two circles are given such that they neither intersect nor touch. Then identify the locus of the center of variable circle which touches both the circles externally.

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  8. Consider the family of circles x^2+y^2=r^2, 2 < r < 5 . If in the fir...

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  12. The minimum area of the triangle formed by the tangent to (x^2)/(a^2)+...

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  13. P is a point on the hyperbola (x^(2))/(a^(2))-(y^(2))/(b^(2))=1, and N...

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  14. If P(x ,y) is any point on the ellipse 16 x^2+25 y^2=400 and f1=(3,...

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  15. Find the equation of the hyperbola whose foci are (8,3)a n d(0,3) and ...

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