Let f (x) = x2-2x + 2, the minimum value of X ∈ [T, t + 1] (t ∈ R) be g (T), and find the expression of G (T)
F (x) = x2-2x + 2 = (x-1) 2 + 1, so the symmetry axis of the image is a straight line x = 1, and the opening of the image is upward
RELATED INFORMATIONS
- 1. Let f (x) = x2-2x + 2, the minimum value of X ∈ [T, t + 1] (t ∈ R) be g (T), and find the expression of G (T)
- 2. The minimum value of the function f (x) = x2-4x-4 in the closed interval [T, t + 1] (t ∈ R) is denoted as G (T). (1) try to write the functional expression of G (T). (2) make the image of G (T) and find the minimum value of G (T)
- 3. F (x) = x2 + 4x + 3, t ∈ R, the function g (T) represents the minimum value of function f (x) in the interval [T, t + 1], and the expression of G (T) is obtained
- 4. Let the function FX = x + A / x + B (a > b > 0), find the monotone interval of F (x), and prove the increasing of F (x) in its monotone interval Sex
- 5. Draw the graph of function f (x) = | x ^ 2 + X-2 | and write the monotone interval
- 6. What is the relationship between derivative function and monotonicity of function? What is the relationship between derivative function and monotonicity of function? How to draw function image by derivative function, or draw derivative function by function? Please give specific examples. Is there a better way to remember them?
- 7. How to find the symmetry axis, monotonicity and parity of trigonometric functions?
- 8. Let y = f (x) be an odd function on the domain R, and f (X-2) = - f (x) holds for all x belonging to R, then the symmetry axis of F (x) image?
- 9. If the function defined on R, y = f (x), and the image of y = f (x + 2) is symmetric with respect to x = 0, then the symmetry axis of the image of the function y = f (x)
- 10. Given the function f (x) = log, take a as the base 1 + X / 1-x (a > 0, a ≠ 1) to find the inverse function
- 11. FX = x ^ 2-2x + 2, X ∈ [T, t + 1], t ∈ R, find the expression of the minimum value g (T) of function FX
- 12. Let f (x) = x ^ 2-2x + 2, let the minimum value of F (x) on [T, t + 1] (t ∈ R) be g (T), and find the expression of G (T)
- 13. Let f (x) = x2-2x + 2, the minimum value of X ∈ [T, t + 1] (t ∈ R) be g (T), and find the expression of G (T)
- 14. Let the minimum value of F (x) = x2-4x-4 on [T, t + 1] (t belongs to R) be g (T). Write out the functional expression of G (T)
- 15. Given that the minimum value of the function f (x) = x ^ 2-4x + 2 in the interval [T, T-2] is g (T), find the expression of G (T)
- 16. As shown in the figure, the image of the quadratic function y = 1 / 2x-x + C intersects with the X axis at two points a and B respectively. The symmetric point of vertex m about the X axis is m ' February 21, 2013 | sharing As shown in the figure, the image of the quadratic function y = 1 / 2x-x + C intersects with the X axis at two points a and B respectively. The symmetric point of vertex m about the X axis is m ' (1) If a (- 4,0), find the relation of quadratic function; (2) Under the condition of (1), calculate the area of the quadrilateral ambm '; (3) Is there a parabola y = 1 / 2x-x + C, so that the quadrilateral ambm 'is a square? If it exists, ask for the functional relation of the first parabola; if not, please explain the reason
- 17. It is known that the vertex of parabola y = a (x-t-1) 2 + T2 (a, t are constants, a ≠ 0, t ≠ 0) is a, and the vertex of parabola y = x2-2x + 1 is B. (1) judge whether point a is on parabola y = x2-2x + 1, why? (2) If the parabola y = a (x-t-1) 2 + T2 passes through the point B, then ① find the value of a; ② can the two intersections of the parabola with the X axis and its vertex a form a right triangle? If you can, find out the value of T; if you can't, explain the reason
- 18. It is known that the vertex of parabola y = (X-2) ^ 2-m ^ 2 (constant M greater than 0) is p Q: if the two intersections of the parabola and the x-axis are a and B from left to right, and the angle APB is 90 degrees, try to find the perimeter of the triangle APB
- 19. Given that the image of function y = K-X (x > 0) passes through point (1,8), the edge BC of rectangle ABCD is on the x-axis Given that the image of function y = K (x > 0) passes through points (1,8), the edge BC of rectangle ABCD is on the X axis, e (m, n) is the midpoint of diagonal BD, and points a and E are on the image of function y = K (x > 0) 1. Use m to represent the abscissa of point C 2. Can rectangular ABCD be a square? If yes, find out the side length of the square; if not, explain the reason
- 20. It is known that: as shown in the figure, the edge BC of rectangle ABCD is on the x-axis, e is the intersection point of diagonal AC and BD, the image with inverse scale function y = 2x (x > 0) passes through two points a and E, and the ordinate of point E is m. (1) find out the coordinate of point a (expressed by M) (2) whether there is a real number m to make quadrilateral ABCD a square, if there is, ask for the value of M; if not, please explain the reason