Given a = {x | x ＜ - 1 or X ＞ 2}, B = {x | 4x + P ＜ 0}, when B is contained in a, the value range of real number P is obtained If I can, I want to solve the problem process

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• 1. Given the complete set u = {x | x ≤ 4 and X ∈ n +}, a = {x | X & # 178; + ax + 2 = 0, X ∈ u}, find CUA For example, find the complement of A
• 2. It is known that when x = - 2, the value of the quadratic trinomial 2x2 + MX + 4 is equal to 18. When x is what, the value of the quadratic trinomial is 4?
• 3. If we know that x is an integer and 2x + 3 + 23 − x + 2x + 18x2 − 9 is an integer, then x is () A. 2 b. 3 C. 4 d. 5
• 4. If we know that x is an integer and 2 / (x + 3) + 2 / (3-x) + (2x-18) / (the square of X-9) is an integer, then the sum of all the values of X that meet the condition is? See, it's (2x-18) / (x squared-9), not (2x + 18) / (x squared-9),
• 5. Given that XY ≠ 1, if 5x2 + 2011x + 9 = 0, 9y2 + 2011y + 5 = 0, then the value of XY is equal to () A. 59B. 95C. −20115D. −20119
• 6. If the equation a2x + (1 + LGM) ax + 1 = 0 (a > 0 and a ≠ 1) of X has a solution, then the value range of M is______ ．
• 7. Given the function f (x) = a ^ x, G (x) = (a ^ 2x) + m, where m > 0, a > 0 and a is not equal to 1, when x belongs to [- 1,1], the sum of the maximum and minimum value of y = f (x) is 5 / 2 (1) Find the value of A; (2) If a > 1, note the function H (x) = g (x) - 2mf (x), and find the minimum value H (m) of H (x) when a belongs to [0,1]; (3) If a > 1 and the inequality | [f (x) - Mg (x)] / F (x) | is less than or equal to 1, then M is obtained when x belongs to [0,1]
• 8. If f (x) = 1-2x, G [f (x)] = 1-x & # 178; (x is not equal to 0), then G (1 / 2) = g (1 / 2) brings 1 / 2 directly into G [f (x)] = 1-x & # 178/ If the function f (x) = 1-2x, G [f (x)] = 1-x & # 178 / / X & # 178; (x is not equal to 0), then G (1 / 2)= G (1 / 2) directly takes 1 / 2 into G [f (x)] = 1-x & # 178 / / X & # 178; why not take it into f (x) and then calculate x into another Isn't this the wrong way to get x
• 9. If f (x) = 2x + 3 and G (x + 2) = f (x), then G (x) equals () A. 2x+1B. 2x-1C. 2x-3D. 2x+7
• 10. Can the value of y = x & # 178; - 2x-3 be equal to - 5? Why? Help!
• 11. Let a = {(x, y) │ x = a, y ∈ r}, B = {(x, y) │ x ^ 2 / 4 + y ^ 2 = 1}, a ∩ B = &;, then the value range of real number a is
• 12. It is known that m and N are the two real roots of the equation x-4x + 3 = 0, and m
• 13. ··As shown in the figure, it is known that m.n is the two real roots of the equation x ＾ - 6x + 5 = 0, m ∠ n, and the image of parabola y = - x ＾ + BX + C passes through point a (m, O). B (O, n) P is a point on the line OC, passing through the point P as the pH ⊥ X axis, intersecting with the parabola at point h and BC at point E. if the straight line BC divides △ PCH into two parts with an area ratio of 2:3, the coordinates of point P are requested Picture in my space
• 14. It is known that f (x) is an even function and a decreasing function on (0, + ∞). If f (12) > 0 > F (3), then the number of roots of F (x) = 0 is () A. 2 b. 2 or & nbsp; 1 C. 3 d. 2 or 3
• 15. How to solve this equation? Log (x ^ 2 + 3x-1) = 2
• 16. The equation log takes 2 as the base and X as the real number root of x ^ 2 - 2 The number of solutions of equation 2 ^ x = x / 2 + 2
• 17. Given that positive numbers a and B satisfy AB = a + B + 3, the range of AB? The range of a + B? Should have a process,
• 18. In the plane rectangular coordinate system, the set C = {(x, y) y = x} represents the straight line y = X. from this angle, what does the set D = {(x, y) 2x − y = 1x + 4Y = 5} represent? What is the relationship between sets C and D?
• 19. Description: the set of points above the x-axis in the plane rectangular coordinate system Pay attention to the top, not the top!
• 20. How to standardize the operation research