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The difference between the radii of the ...

The difference between the radii of the largest and the smallest circles which have their centre on the circumference of the circle `x^2+y^2+2x+4y-4=0` and pass through the point (a,b) lying outside the given circle,is

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CENGAGE PUBLICATION-CONIC SECTIONS-All Questions
  1. Statement 1 : The number of circles passing through (1, 2), (4, 8) a...

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  2. The locus of the midpoint of a line segment that is drawn from a given...

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  3. The difference between the radii of the largest and the smallest circl...

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  4. The centre of a circle passing through the points (0,0),(1,0)and touch...

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  5. Each question has four choices a, b, c and d, out of which only one is...

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  6. Statement 1 : If the chords of contact of tangents from three points...

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  7. Statement 1 : Circles x^2+y^2=144 and x^2+y^2-6x-8y=0 do not have any ...

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  8. The locus of the point from which the lengths of the tangents to the ...

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  9. The locus of the center of the circle touching the line 2x-y=1 at (1,...

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  10. The distance from the center of the circle x^2+y^2=2x to the common ch...

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  11. The circle passing through (-1, 0) and touching the y - axis at (0, 2)...

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  12. The equation of the circumcircle of an equilateral triangle is x^2+y^2...

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  13. A circle with radius |a| and center on the y-axis slied along it and a...

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  14. If the angle of intersection of the circle x^2+y^2+x+y=0 and x^2+y^2+x...

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  15. The range of values of alpha for which the line 2y=gx+alpha is a norma...

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  16. Consider a circle x^2+y^2+a x+b y+c=0 lying completely in the first q...

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  17. The equation of the circle passing through the point of intersection ...

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  18. The centres of a set of circles, each of radius 3 , lie on the circle ...

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  19. The co-ordinates of two points P and Q are (x1,y1) and (x2,y2) and O i...

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  20. The area of the triangle formed by the positive x-axis, and the normal...

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