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The distance of the point (1, 2) from th...

The distance of the point (1, 2) from the line x+y+5 = 0 measured along with the line parallel to 3x-y=7 is equal to :

A

`4 sqrt 10`

B

40

C

`sqrt40`

D

`10 sqrt2`.

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MODERN PUBLICATION-CONIC SECTIONS-EXERCISE
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  7. The vertices of a triangle are (3, 0), (3, 3) and (0, 3). Then the coo...

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  8. Area of the equilateral triangle inscribed in circle x^2+y^2 -7x+ 9y+5...

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  9. The equation of one of the diameters of the circle x^2+y^2 - 6x + 2y =...

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  11. The equation of the parabola having focus (3, 2) and vertex (1, 2), is...

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  12. The sum of the distances of a point (2, -3) from the foci of an ellips...

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  13. The equation of one of the tangents to x^2/3-y^2/2=1 which is parallel...

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  14. If e1 is eccentricity of the ellipse x^2/16+y^2/7=1 and e2 is eccentri...

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  15. A line passes through point (2, 2) and perpendicular to the line 3x + ...

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  16. If px^2-10xy + 12y^2+ 5x - 16y - 3 = 0 represents a pair of straight l...

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  17. Points (3, 3), (h, 0), (0, k) are collinear and a/h+b/k=1/3. Then :

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  18. sqrt 2009/3 (x^2-y^2)=1, then eccentricity of the hyperbola is :

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  19. The value of k for which the line x+y+1=0 touches the parabola y^2 = 4...

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  20. The eccentricity of the ellipse x^2/a^2+y^2/b^2=1, if its latus rectum...

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