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P(-9,-1) is a point on the circle x^2+y^...

P(-9,-1) is a point on the circle `x^2+y^(2)+4x+8y-38=0`. The equation to the tangent at the other end of the diameter thorugh P is

A

7x-3y=60

B

7x+3yt=56

C

7x-3y=56

D

7x+3y=60

Text Solution

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The correct Answer is:
C
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1B(Circle-Line)
  1. The equation of the tangent to the circle x^(2)+y^(2)+4x-4y+4=0 which ...

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

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

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

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

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

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

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

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

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

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

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

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

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  14. If the tangent from a point P to the circle x^(2)+y^(2)=1 is perpendic...

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  15. The locus of the point of intersection of two tangents drawn to the ci...

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  16. The locus of the feet of the perpendicular drawn from the point (a,0) ...

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  17. The locus of the middle points of portions of the tangents to the circ...

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  18. If 4t^(2)-5m(2)+6l+1=0, then the line lx+my+1=0 touches the circle

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  19. The locus of the point (l,m) if the line lx+my=1 touches the circles x...

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

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