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Find the length of the tangent drawn fro...

Find the length of the tangent drawn from the point (4, 7) to the circle `x^2+y^2=15`.

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Length of the tangent drawn from the point (4, 7) to the circle `x^2+y^2=15`
is `sqrt(16+49-15)=5sqrt2`
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MBD PUBLICATION-CONIC SECTIONS-QUESTION BANK
  1. Find the length of the tangent, drawn to the circles x^2+y^2+10x-6y+8=...

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  2. Find the length of the tangent drawn from the point (2, -1) to the cir...

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  3. Find the length of the tangent drawn from the point (4, 7) to the circ...

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  4. Prove that the circles given by the equations x^2+y^2+2x-8y+8=0 and x^...

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  5. Prove that the circles given by the equations x^2+y^2=4 and x^2+y^2+6x...

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  6. Prove that the two circles x^2+y^2+2by+c^2=0 and x^2+y^2+2ax+c^2=0, wi...

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  7. Prove that the circles given by x^2+y^2+2ax+2by+c=0, and x^2+y^2+2bx+2...

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  8. Find the equation of the circle through the point of intersection of c...

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  9. Find the equation of the circle passing through the intersection of th...

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  10. Find the radical axis of the circles x^2+y^2-6x-8y-3=0 and 2x^2+2y^2+4...

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  11. Find the radical axis of the circles x^2+y^2-6x+8y-12=0 and x^2+y^2+6x...

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  12. If centre of one circle lies on or inside another, prove that the circ...

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  13. If a circle S intersects circles S1 and S2 orthogonally. Prove that th...

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  14. R is the radical centre of circles S1, S2 and S3. Prove that if R is o...

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  15. Determine a circle which cuts orthogonally each of the circles. S1 : x...

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  16. Prove that on pair of concentric circles can have a radical axis.

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  17. The equation of the directrix to the parabola x^2=-6yis .

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  18. The eccentricity of the parabola y^2=8xis .

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  19. The line y+x=k is tangent to the parabola y^2+12x=0 if k=.

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  20. The latus rectum of the parabola (y-2)^2=8(x+3) is .

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