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Question 1
Consider the circles x2 + y2 + 8x + m = 0 and x2 + y2 + 6y + m = 0
What is the distance between the centres of the two circles?
Question 2
Consider the circles x2 + y2 + 4x + m = 0 and x2 + y2 + 6y + m = 0
Find the value of ‘m’ for which the two circles touch each other
Question 3
Find the equation of the circle which touches the x-axis at the origin and whose radius is 3
Question 4
Find the equation of the circle with centre (3,4) and passing through the point (6,7)
Question 5
A flower-bed in the form of a sector has been fenced by a wire of 40 m length. If the flower-bed has the greatest possible area, then what is the radius of the sector?
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Tags :
CDS & DefenceMathematicsJan 13CDS & Defence
