On quadratic inequalities of one variable Given that the square of equation x + 2mx + 2-m = 0 has two real roots with the same sign but not equal, what is the value range of real number m
Discriminant = 4m ^ 2-4 (2-m) > 0
2-m > 0
m
RELATED INFORMATIONS
- 1. If the inequality system x + 5 > 4x − 1x > m − 2 about X has five integer solutions, then the value range of M is______ .
- 2. An inequality problem, to process! If there is a two digit number, the number on the ten digit is 2 larger than that on the single digit, and the two digits are between 50 and 70, what are the two digits? What are the ten digit and the single digit?
- 3. a> 0, b > 0, then the minimum value of (a + B + 4) / (a ^ 0.5 + B ^ 0.5) is__________ ? Don't tell me to bring it in directly with special value method,
- 4. Inequality, x²-(3+a)x+3a>0
- 5. 3 (x + 2) is greater than or equal to x + 4 (x-1) divided by two is less than 1
- 6. Junior one inequality problem to process, thank you for the urgent need to answer We know the equations x + y = 2m + 7 about X and y The solution of {is a positive number x-y=4m-3 (1) (2) simplify the absolute value of 3M + 2 minus the absolute value of m-5
- 7. How to solve these inequalities 1. |ax+3|0 3. (x-1)^2(x+2) ----------------0, (a belongs to R) Thank you!
- 8. Ask the master to solve the following inequality problem, remember that I am a freshman in high school 2x+3/x+2-1 /After that are molecules
- 9. Two inequality problems 1. Real numbers x and y satisfy the inequality X-Y ≥ 0 and Y ≥ 0 and 2x-y-2 ≥ 0 Find the value range of W = Y-1 / x + 1 2. Sequence 3 / 2, 9 / 4, 25 / 8, 65 / 16161 / 32 N*1/2^n Finding the sum of the first n terms
- 10. How to solve the univariate quadratic inequality of senior one? 1. (x-1) (the square of x-3x + 2)
- 11. Quadratic inequality of one variable in junior high school mathematics What is the solution of 2x ^ 2 + 3 > 5?
- 12. A problem of filling in the blanks of inequality in elementary 2 To write ideas and steps, read after additional It is known that the system of equations 3x + y = K + 1, x + 3Y = 3, if 2
- 13. In the plane rectangular coordinate system, the coordinates of points a, B and C are (0,1), (4,2), (2,6) respectively. If P (x, y) is a point on the area (including boundary) enclosed by △ ABC, then when the maximum value of ω = XY is taken, the coordinates of point P are______ .
- 14. Let x > 0, Y > 0 and X + 2Y = 1, find the minimum value of 1x + 1y___ .
- 15. Application of basic inequality A city plans to build a street garden. The area of the central flower bed is a, and there are paths with width of a and B around it. Question: how to design to minimize the area of the street garden?
- 16. A mathematical problem of filling in the blanks (basic inequality and its application) If x < 0, then x + 1 / X - 2 It's x + 1 / X () - 2
- 17. Mathematical inequality of senior one A=(x l l2x-4l
- 18. 1: What is the solution set of inequality x x ≥ x? 2: If the solution set of inequality ax square + BX + 2 > 0 is (- 1 / 2, 1 / 3), then the value of a + B is? 3: Let u = R, a = {Xmx square + 8mx + 21 > 0} complement a = empty set, then the value range of M is? 4: When there is exactly one solution in inequality 2 ≤ x square + PX + 10 ≤ 6, the value of real number P is? 5: If the inequality x-4x + 3 < 0 and x-6x + 8 < 0 hold at the same time, the value of X satisfies the inequality 2x-9x + a < 0, then the value range of a is? 6: The solution set of inequality 1 ﹤ x + 1 ﹤ 3 is? 7: The solution set of inequality (1 - x) (1 + x) > 0 is? 8: When X-2 < a, the inequality x square-4 < 1 holds, then the value range of positive number a is? 9: If the solution set of inequality MX square + 3 > 2 about X is a, and a is really included in R, then the value range of real number m is? 10: What is the solution set of the inequality x + 2 / X > x + 2 / x? 11: If the solution set of inequality ax + 2 < 6 is (- 1,2), then the real number a is equal to?
- 19. Higher one absolute value inequality Solving inequality | X / (1 + x) | X / (1 + x)
- 20. emergency There are two questions 1. When | X-2|