Given that points a (- 2,0), m and N are the moving points on the x-axis and y-axis respectively, the vector am multiplies the vector Mn = 0, and the vector MB = the vector BN The trajectory of the recording point B is a curve C 1. Find the equation of curve C 2. It is known that the moving straight line L intersects with the curve C at P and Q. the tangent lines of the curve C at P and Q are L1 and L2, and L1 is perpendicular to L2. It is proved that l passes through the fixed point

Let the vector am multiply by the vector Mn = 0, a, m on the x-axis, N on the y-axis, am ⊥ Mn, m be the origin
May be m, n position exchange it, please check the original

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1. As shown in the figure, a given line segment AB is divided into 2:3 segments by point m, and 4:1 segments by point n. if Mn is equal to 5cm, then the line segment BN=________ .
2. Solving the equation 2x + 3Y = m.4y + 5Y = n about X, y
3. It is known that the solutions of the equation 5x-3 = 3x-2 and the equation 5Y + m / 6 = 7 / 3 are reciprocal to each other
4. Given that the solutions of the equation 5x-3 = 3x-2 and the equation 5Y + m / 6 = 7 / 3 about y are reciprocal to each other, find M
5. Square of X + 1 / x + quadratic of X + 3x + 1 / 2 + square of X + 2 / 2x
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7. It is known that a real number root of the quadratic equation AX2 + BX + C = 0 with one variable about X is x = - 2. Find the value of the algebraic formula 4a-2b + c-2013
8. When x = 0, the value of the algebraic formula AX2 + BX + C is 1; when x takes 1 and 2 respectively, the value of the algebraic formula AX2 + BX + C is 0, when x takes - 1 What is the value of the algebraic expression AX2 + BX + C?
9. Find the sum of all numbers of 1 ~ 2009 continuous natural numbers It's the sum of the numbers. For example, the sum of 11 and 12 is 5
10. It is known that the sum of two natural numbers is 100. When the two natural numbers are respectively, what is the maximum product of them It's the first day of junior high school It's about the complete square formula hurry up
11. Given two points a (- 3, m) B (n, 4), if AB / / X axis, find the value of m to determine the range of n Given two points a (2ya), B (XB, - 3), the coordinates of two points a and B can be obtained according to the following conditions 1. A and B are symmetric about X axis 2. A and B are symmetric about y axis 3. A and B are symmetric about origin
12. If the points m (a + 1,2), n (3, b-2) and Mn are parallel to the y-axis, find ab The satisfying conditions of ab
13. If the points m (- 3,5), n (- 3, - 9), then the position relations of the line Mn with the x-axis and y-axis are
14. If the coordinates of points m and N are (- 2,3) and (- 2, - 3), then the position relationship between the line Mn and the Y axis is______ ．
15. The coordinates of the point m (- 2,1) which is symmetric about the X axis are______ The position relationship between the line Mn and the x-axis is______ ．
16. The solution of the equation 2x-5-1 = 0 is the solution of the one variable linear equation (M + 1 / 2) x ^ 2 + 4x + n = 3x + 1 about X. find the solution of m ^ 2 + Mn + n ^ 2
17. It is known that x = 1, y = - 1 is the solution of the equation Mn + 2ny = 0, x = m, yn is the solution of the equation 3x + y = 7, finding the value of M and N is a process plus There is a wrong number: x = m, y = n, missing an equal sign, now there is nothing wrong! Hee hee,
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20. We know that M is a quadratic trinomial about X, n is a quartic trinomial about X, then Mn is a few times trinomial about X