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If the function f (x) = min {2x, x + 2, 10-x} (x ≥ 0), then the maximum value of F (x) is___ ．
∵ min {a, B, C} denotes the minimum value of a, B, C, draw the image of three functions: y = 2x, y = x + 2, y = 10-x, and take the lower part of the three images to get the image of function f (x) = min {2x, x + 2, 10-x}: when 0 ≤ x ≤ 2, f (x) = 2x, when 2 ≤ x ≤ 4, f (x) = x + 2, when x > 4, f (x) = 10-x, the maximum value of F (x) is taken when x = 4 The answer is: 6
Find the maximum and minimum value of the function y = x ^ 2 + ax + 1, X ∈ [2,4]. =
y=x^2+ax+1
y=(x+a/2)^2-a^2/4+1
X = - A / 2 is the axis of symmetry
1：
When - A / 2 = 4
The function is a decreasing function
F (2) = 2A + 5
F (4) = 4A + 17 is the smallest;
When 2
In the aspect of scientific action guide, how to develop Marxism in reform and opening up
Speed
What are the nouns of the same type
For example, sheet,
Swiss Swiss giraffe Japanese trousers, police, cattle clothes, scissors, scales, etc
What is the surface area of a cylinder with a bottom diameter of 10 cm and a height of 30 cm?
1, radius is 5cm, circle area is π X5 & sup2; = 25 π;
2. The perimeter of the bottom surface is π X10 = 10 π, and the side area is 10 π x30 = 300 π;
3. The surface area of the cylinder is 300 π + 2x25 π = 350 π = 1099 (CM & sup2;)
The greatest common factor and the least common multiple of 75, 42 and 60
The greatest common factor 3 and the least common multiple 3 * 2 * 5 * 5 * 7 * 2 of 75, 42 and 60 are 2100
3 L 75,42,60
2 L 25,14,20
5 L 25,7,10
5,7,2
In the triangle ABC, AC is equal to 5, BC is equal to 2, and ab is odd. Find the perimeter of the triangle ABC
The length of side AB is 5. Because AB is odd, it may be 1.3.5.7.9. However, if the condition for forming a triangle is greater than the sum of two sides and less than the difference between two sides, it is greater than 3 and less than 7. So it is 5
The greatest common divisor of the two numbers is 18, the least common multiple is 180, and the difference between the two numbers is 54______ And______ ．
Because 180 △ 18 = 10, 10 can be decomposed into two coprime numbers, i.e. 1 and 10, 2 and 5, so the two numbers have several situations: 18 × 1 = 18, 18 × 10 = 180 (not conforming to the meaning of the problem), 18 × 2 = 36, 18 × 5 = 90 (not conforming to the meaning of the problem). Answer: these two numbers are 36 and 90. So the answer is: 36, 90
How to realize E1 = A1 / B1 * C1 * D1 *; J1 = F1 * G1 * H1 * I1; K1 = E1 + J1
Input according to the formula you wrote
That is, input = A1 / B1 * C1 * D1 at E1
Input = F1 * G1 * H1 * I1 at J1
In K1, input = E1 + J1
Enter and press enter
What is the plural of tomato
Add es to all living words ending in o
For example, tomato, potato. All add direct es
But if there is no life, add s! For example, photo, radio
RELATED INFORMATIONS
- 1. Let a be greater than 0, - 1 ≤ x ≤ 1, the minimum value of function y = - x ^ 2-ax + B + 1 is - 4, and the maximum value is 0 I know that the axis of symmetry is negative, so when x = 1, the minimum is - 4, but the answer is that when x = - 1, the minimum is 0, which I don't understand
- 2. Which function's derivative is the x power of y = 2 As soon as possible, thank you
- 3. Why is the 2 / 3 power of function y = x not differentiable at x = 0?
- 4. We know that the function f (x) = 3 / 2x to the power of 3-2x-6x + 1 Given the function f (x) = the cubic power of 2x-2x-6x + 1 (1) Find the tangent equation of the curve f (x) at x = 0; (2) Find the maximum and minimum value of function f (x) in the interval [- 3,1],
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- 7. For the function f (x), if there exists x0 ∈ r such that f (x0) = x0 holds, then x0 is called the fixed point of F (x). It is known that f (x) = AX2 + (B + 1) x + (B-1) (a ≠ 0) (1) When a = 1, B = - 2, find the fixed point of F (x)
- 8. We know that the function is an odd function on f (x) = AX3 + CX + D. when x = 1, we take the extremum - 2 and find the monotone interval and maximum of F (x)
- 9. F (x) = x ^ 3 + BX ^ 2 + CX + D (x belongs to R). It is known that f (x) = f (x) - f '(x) is an odd function and f (1) = t (T)
- 10. The function f (x) = ax ^ 3 + BX ^ 2 + CX + 3 defined on R satisfies the following conditions 1. F (x) is a decreasing function on (0,1) and an increasing function on (1, + OO) 2. F '(x) is even function 3. The tangent of F (x) at x = 0 is perpendicular to the line y = x + 2 Finding the analytic expression of function y = f (x) Let g (x) = 4lnx-m, if x belongs to [1, e], Let g (x)
- 11. Let min {x, y} denote the minimum value of X and y, for example, min {0,2} = 0, min {12,8} = 8, then the function y of X Let min {x, y} denote the minimum value of X and y, for example, min {0,2} = 0, min {12,8} = 8, then the function y of X can be expressed as ()
- 12. If the odd function f (x) = ax ^ 3 + (B-1) x ^ 2 + CX has an extreme value at x = 1, then 3A + B + C=
- 13. Given that the two extreme points of the function f (x) = ax ^ 3 + BX ^ 2 + CX + D are - 1 and 3, and f (0) = - 7, f '(0) = - 18, find the expression of F (x)
- 14. Given the function f (x) = x ^ 3 + BX + CX + 2, the extremum is obtained at x = 2 / 3 Determine the analytic expression of function f (x) and find the monotone interval of function f (x)
- 15. The function f (x) = ax + B, a, B ∈ R, when x is greater than or equal to - 1 and less than or equal to 1, the absolute value of F (x) is less than or equal to 1 It is proved that the absolute values of a and B are less than or equal to 1
- 16. Given the function f (x) = sin (2wx - π / 6) (W > 0), for any m belonging to R, the image of function y = f (x) (x belonging to [M, M + π]) and the line y = 1 have only one intersection, then w =?
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