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प्रश्न
Choose the correct alternative:
The radius of the circle 3x2 + by2 + 4bx – 6by + b2 = 0 is
पर्याय
1
3
`sqrt(10)`
`sqrt(11)`
उत्तर
`sqrt(10)`
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संबंधित प्रश्न
Find the equation of the following circles having the centre (3, 5) and radius 5 units.
Find the centre and radius of the circle
x2 + y2 = 16
Find the centre and radius of the circle.
(x + 2) (x – 5) + (y – 2) (y – 1) = 0
Find the equation of the circle on the line joining the points (1, 0), (0, 1), and having its centre on the line x + y = 1.
If the lines x + y = 6 and x + 2y = 4 are diameters of the circle, and the circle passes through the point (2, 6) then find its equation.
Find the Cartesian equation of the circle whose parametric equations are x = 3 cos θ, y = 3 sin θ, 0 ≤ θ ≤ 2π.
Find the equation of the tangent to the circle x2 + y2 – 4x + 4y – 8 = 0 at (-2, -2).
Find the values of a and b if the equation (a - 1)x2 + by2 + (b - 8)xy + 4x + 4y - 1 = 0 represents a circle.
If (4, 1) is one extremity of a diameter of the circle x2 + y2 - 2x + 6y - 15 = 0 find the other extremity.
The equation of the circle with centre on the x axis and passing through the origin is:
In the equation of the circle x2 + y2 = 16 then v intercept is (are):
If the circle touches the x-axis, y-axis, and the line x = 6 then the length of the diameter of the circle is:
Find the equation of circles that touch both the axes and pass through (− 4, −2) in general form
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Find centre and radius of the following circles
x2 + (y + 2)2 = 0
Find centre and radius of the following circles
2x2 + 2y2 – 6x + 4y + 2 = 0
Choose the correct alternative:
The length of the diameter of the circle which touches the x -axis at the point (1, 0) and passes through the point (2, 3)
Choose the correct alternative:
The equation of the normal to the circle x2 + y2 – 2x – 2y + 1 = 0 which is parallel to the line 2x + 4y = 3 is
Choose the correct alternative:
If the normals of the parabola y2 = 4x drawn at the end points of its latus rectum are tangents to the circle (x – 3)2 + (y + 2)2 = r2, then the value of r2 is
