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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

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1B(Circle-Line)
  1. How many circles can be drawn each touching all the three lines x+y=1,...

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  2. The number of circles that touches all the three lines x+y-1=0, x-y-1=...

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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. If y=3x is a tangent to a circle with centre (1,1) then the other tang...

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  5. The equation of the tangents to the circle x^(2)+y^(2)-4x-6y-12=0 and ...

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  6. The equation of the tangent to the circle x^(2)+y^(2)+8x-4y-5=0 and pe...

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  7. The equation of the tangents to the circle x^(2)+y^(2)-2x+8y-23=0 and ...

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  8. The equation of the tangent to the circle x^(2)+y^(2)=16 which are inc...

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  9. The equation of the tangent to the circle x^(2)+y^(2)+4x-4y+4=0 which ...

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  10. x^(2)+y^(2)-4x-6y+9=0 and (x+3)^(2)+(y+2)^(2)=25 are two circles. The ...

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  11. P(-9,-1) is a point on the circle x^2+y^(2)+4x+8y-38=0. The equation t...

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  12. The area of the triangle formed with the coordinate axes and the tange...

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  13. The equations of the tangents to the circles x^(2)+y^(2)=a^(2) which m...

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  14. The area of triangle formed by the positive x-axis and the tangent and...

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  15. Let A be the centre of the circle x^(2)+y^(2)-2x-4y-20=0. Suppose that...

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  16. If a tangnet drawn from the point (4,0) to the circle x^(2)+y^(2)=8 to...

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  17. The tangent at (3,4), (4,-3) to the circle x^(2)+y^(2)=25" are"

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  18. If the tangents at (5,12) and (12,-5) to a circle are perpendicular to...

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

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

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