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If the equatio of one tangent to the cir...

If the equatio of one tangent to the circle with centre (2,-1) from the origin is 3x+y=0, then the equation of the other tangent through the origin is

A

`3x-y=0`

B

`x+3y=0`

C

`x-3y=0`

D

`x+2y=0`

Text Solution

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The correct Answer is:
C
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AAKASH SERIES-CIRCLES-PRACTICE EXERCISE
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  2. Find the equation of the circles which touch 2x-3y+1=0 at (1,1) and ha...

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  3. If the equatio of one tangent to the circle with centre (2,-1) from th...

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  4. The normal of the circle (x- 2)^(2)+ (y- 1)^(2) =16 which bisects the ...

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  5. The equation of the diameter of the circle x^(2)+y^(2)+2x-4y=4=0 that ...

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  6. The angle between the tangents to the circle with centre (4,5) drawn f...

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  7. The locus of the point of intersection of two perpendicular tangents t...

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  8. Locus of point of intersection of perpendicular tangents to the circle...

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  9. The locus of the point of intersection of the perpendicular tangents t...

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  10. Tangents from point P are drawn one of each of th circle x^(2)+y^(2)-4...

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  11. From any point on the circle x^(2)+y^(2)=a^(2) tangent are drawn to th...

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  12. The tangents drawn from the origin x^(2)+y^(2)-2rx-2hy+h^(2)=0 are per...

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  13. The length of the tangent from a point on x^(2)+y^(2)+8x+8y-4=0 to 2x^...

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  14. If the length of the tangent from (f,g) to the circle x^(2)+y^(2)=6 be...

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  15. If the square of the length of the tangents from a point P to the circ...

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  16. If the length of the tangent from (1,2) to the circle x^(2)+y^2+x+y-4=...

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  17. A tangent to the circle x^(2)+y^(2)=4 meets the coordinate axes at P a...

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  18. The locus of the point of intersection of tangents to the circle x=a c...

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  19. The circle with centre (2,3) touching x-axis has the radius equal to

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  20. Circle touching y-axis and centre (3,2) is

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