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The points of contact of tangents to the...

The points of contact of tangents to the circle `x^(2)+y^(2)=25` which are inclined at an angle of `30^(@)` to the x-axis are

A

`(pm 5//2, pm 1//2)`

B

`(pm1//2, pm5//2)`

C

`(pm 5//2, pm 1//2)`

D

none of these

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The correct Answer is:
D
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OBJECTIVE RD SHARMA-CIRCLES-Exercise
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  2. One of the diameter of a circle circumscribing the rectangle ABCD is 4...

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

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

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

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

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  7. The equation of the circle which touches the axes of coordinates and ...

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  8. If the chord of contact of the tangents from a point on the circle x^2...

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  9. If from the origin a chord is drawn to the circle x^(2)+y^(2)-2x=0, t...

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  10. The locus represented by x=a/2(t+1/t), y=a/2(t-1/t) is

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  11. If the circle C1: x^2 + y^2 = 16 intersects another circle C2 of radiu...

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  12. Find the locus of the midpoint of the chord of the circle x^2+y^2-2x-2...

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  13. The two circles x^(2)+y^(2)-2x-3=0 and x^(2)+y^(2)-4x-6y-8=0 are such ...

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  14. The equation of the circle having its centre on the line x+2y-3=0 and ...

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  15. The equation of the circumcircle of the triangle formed by the lines y...

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  16. The equation x^(2)+y^(2)+4x+6y+13=0 represents

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  17. To which of the circles, the line y-x+3=0 is normal at the point (3+3s...

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  18. Circles are drawn through the point (2, 0) to cut intercept of length ...

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  19. Find the equation of the circle which touches both the axes and the ...

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  20. The slope of the tangent at the point (h, h) of the circle x^(2)+y^(2...

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