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प्रश्न
Choose the correct alternative:
The radius of the circle 3x2 + by2 + 4bx – 6by + b2 = 0 is
विकल्प
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.
Find the equation of the tangent to the circle x2 + y2 – 4x + 4y – 8 = 0 at (-2, -2).
Find the length of the tangent from (1, 2) to the circle x2 + y2 – 2x + 4y + 9 = 0.
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.
(1, -2) is the centre of the circle x2 + y2 + ax + by – 4 = 0, then its radius:
The length of the tangent from (4, 5) to the circle x2 + y2 = 16 is:
The equation of the circle with centre (3, -4) and touches the x-axis is:
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 the circle with centre (2, −1) and passing through the point (3, 6) in standard form
Find the equation of the circles with centre (2, 3) and passing through the intersection of the lines 3x – 2y – 1 = 0 and 4x + y – 27 = 0
Find the equation of the tangent and normal to the circle x2 + y2 – 6x + 6y – 8 = 0 at (2, 2)
Find centre and radius of the following circles
x2 + y2 + 6x – 4y + 4 = 0
Find centre and radius of the following circles
2x2 + 2y2 – 6x + 4y + 2 = 0
If the equation 3x2 + (3 – p)xy + qy2 – 2px = 8pq represents a circle, find p and q. Also determine the centre and radius of the circle
Choose the correct alternative:
The radius of the circle passing through the points (6, 2) two of whose diameter are x + y = 6 and x + 2y = 4 is
Choose the correct alternative:
The circle passing through (1, – 2) and touching the axis of x at (3, 0) passing through the point
