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Fing the condition that the tangents d...

Fing the condition that the tangents
drawn from the exterior point `(g, f) ` to
`S -= x^(2) + y^(2) + 2 gx + 2fy + c=0` are perpen-
dicular to each other.

Text Solution

Verified by Experts

The correct Answer is:
This is the condition for the tangent drawn
from `(g, f)` to the circle `S = 0 `
perpendicular.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-CIRCLE-EXERCISE - 1(e)
  1. Fing the condition that the tangents drawn from the exterior point (...

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  2. Discuss the relative position of the fol- lowing pair of circles. ...

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  3. Discuss the relative position of the fol- lowing pair of circles. ...

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  4. Discuss the relative position of the fol- lowing pair of circles. ...

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  5. Discuss the relative position of the fol- lowing pair of circles. ...

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  6. Find the number of possible common tangents that exist for the follo...

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  7. Find the number of possible common tangents that exist for the follo...

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  8. Find the number of possible common tangents that exist for the follo...

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  9. Find the number of possible common tangents that exist for the follo...

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  10. Find the number of possible common tangents that exist for the follo...

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  11. Find the internal centre of similitude for the circles x^(2) + y^(2)...

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  12. Find the external centre of similitude for the circles x^(2) + y^(2...

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  13. Show that the circle x^(2) +y^2) - 6x -2y + 1 = 0, x^(2) + y^(2)...

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  14. Show thet x^(2) + y^(2) - 6x - 9y + 13 = 0 , x^(2) + y^(2) - 2x - 1...

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  15. Find the equation of the circle which touches the circle x^(2) + y^(...

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  16. Find the direct common tangents of the circles. x^(2) + y^(2) + 2...

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  17. Find the transverse common tangents of the circles x^(2) + y^(2) -4...

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  18. Find the pair of tangents from (4, 10) to the circle x^(2) + y^(2) =...

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  19. Find the pair of tangents drawn from (0,0) to x^(2) + y^(2) + 10x + ...

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  20. Find thhe equation of the circle which touches x^(2) + y^(2) - 4x +6...

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  21. Find all common tangents of the following pairs of circles. x^(2) ...

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