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The number of the tangents that can be d...

The number of the tangents that can be drawn from (1, 2) to `x^(2)+y^(2)=5`, is

A

1

B

2

C

3

D

0

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The correct Answer is:
A
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OBJECTIVE RD SHARMA-CIRCLES-Exercise
  1. If the circles (x-a)^(2)+(y-b)^(2)=c^(2) and (x-b)^(2)+(y-a)^(2)=c^(2)...

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  2. The equation of the image of the circle x^2+y^2+16x-24y+183=0 by the l...

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  3. The number of the tangents that can be drawn from (1, 2) to x^(2)+y^(2...

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  4. Equation of the circle through the origin and making intercepts of 3 a...

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  5. If y=2x is the chord of the circle x^2+y^2-4x=0, find the equation of ...

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  6. The tangent to x^(2)+y^(2)=9 which is parallel to y-axis and does not ...

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  7. The two circles x^(2)+y^(2)-5=0 and x^(2)+y^(2)-2x-4y-15=0

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  8. If the circle x^2+y^2+2x+3y+1=0 cuts x^2+y^2+4x+3y+2=0 at Aa n dB , th...

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  9. The circle x^(2)+y^(2)=4 cuts the circle x^(2)+y^(2)-2x-4=0 at the poi...

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  10. If the circle x^2+y^2+2gx+2fy+c=0 is touched by y=x at P such that O P...

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  11. The number of common tangents of the circles x^(2)+y^(2)+4x+1=0 and x...

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  12. The length of the common chord of the circles x^(2)+y^(2)-2x-1=0 and ...

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  13. If a circle passes through the point (a, b) and cuts the circle x^2 + ...

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  14. If the lines 3x-4y+4=0a d n6x-8y-7=0 are tangents to a circle, then fi...

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  15. Coordinates of the centre of the circle which bisects the circumferenc...

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  16. One of the diameter of a circle circumscribing the rectangle ABCD is 4...

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  17. The points of contact of tangents to the circle x^(2)+y^(2)=25 which a...

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  18. If (mi,1/mi),i=1,2,3,4 are concyclic points then the value of m1m2m3m4...

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  19. Find the area of the triangle formed by the tangents from the point (4...

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  20. The tangent at P, any point on the circle x^2 +y^2 =4 , meets the coor...

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