The equation of a circle passing through two points P (2,4) and Q (3, - 1) with a segment length of 6 on the x-axis is

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• 1. Find the equation of circle with chord length m and N on X and Y axis
• 2. Find the equation of the circle passing through the intersection point and coordinate origin of the circle x ^ 2 + y ^ 2 = 1 and x ^ 2 + y ^ 2-4x + 2 = 0
• 3. Find the equation of the circle passing through the coordinate origin and point P (1,1), and the center of the circle on the line 2x + 3Y + 1 = 0 How do you work out the equation of the vertical bisector?
• 4. If the circle C passes through the coordinate origin and the center of the circle is on the straight line y = - 2x + 3, the equation of the circle with the minimum radius is obtained
• 5. It is known that a circle passes through the coordinate origin and point P (1,1), and the center of the circle is on the line 2x + 3Y + 1 = 0
• 6. Find the equation of the circle whose center is on the straight line y = - 2x and passes through the origin bar and point a (2, - 1)
• 7. Find the equation of circle C with the center of circle C on the straight line y = 2x and passing through the origin O and point m (3,1)
• 8. By knowing that the center of circle C is on the straight line L: x-2y-1 = O and passes through the origin and a (2,1), the equation of circle C is obtained
• 9. It is known that a circle passes through the coordinate origin and point P (1,1), and the center of the circle is on the line 2x + 3Y + 1 = 0
• 10. Find the equation of circle C whose center is on the line y = 2x and passes through the origin and point m (3,1)
• 11. Find the equation of the circle with the length of the line segment of 3 through the origin and a (1,1) on the x-axis
• 12. For the circle passing through the origin and a (1.1), the length of the line segment cutting the ground on the x-axis is 3
• 13. The equation of a circle with a line segment length of 10 on the x-axis through the origin and point m (1, - 1) is obtained The equation of a circle with a line segment length of 10 on the x-axis through the origin and point m (1, - 1) is obtained
• 14. Given that the circle C: x ^ 2 + y ^ 2-10x = 0, the chord length of the line L passing through the origin cut by the circle C is 8, the equation of the line L is obtained
• 15. Given that the circle C ': (x-1) ^ 2 + y ^ 2 = a passes through the origin and is symmetric to the circle C with respect to the straight line y = - x, find the equation of the circle C and the length of the chord where the circle C intersects with the circle C'
• 16. Find the derivative f (x) = ln CTG X / 2 at point x = - π / 6 It's minus one sixth of the point Find the derivative
• 17. Let f (x) = (2x + 1) ln (2x + 1); (1) find the minimum of F (x); (2) if x ≥ 0, f (x) ≥ 2aX holds, find the value range of real number a
• 18. 1. Given the function f (x) = ln (x + 1) + ax ^ 2-x, a ∈ R (1) When a = 1 / 4, find the extremum of function y = f (x); (2) Is there a real number B ∈ (1,2) such that when x ∈ (- 1, b], the maximum value of function f (x) is f (b)? If there is a range of real number a, if not, please explain the reason I'd like to ask teachers and students to help me solve some problems. We have a holiday these days. First, I'll take a good look at the 20 and 21 questions in my exams. There are more than 70 questions. If I do them one by one, I don't have enough time to take a day off. So I want to take a serious look at the solutions. I hope the process can be more detailed,
• 19. The function f (x) = ln (x + 1) - ax + (1-A) / (x + 1) (A & gt; 0.5) (1) is known when the curve y =
• 20. Let a > 0 be a constant and f (x) = x ＾ (1 / 2) - ln (x + a) be the maximum of F (x) when a = 3 / 4,