Given x < 5 / 4, find the maximum value of function y = 4x-2 + 1 / (4x-5) Given x > 0, Y > 0 and 1 / x + 9 / y = 1, find the minimum value of X + y
Translate the parabola y = ax ^ 2 + BX + C down 2 units Then translate 6 units to the left, and the vertices of the parabola are - 3, - 1. And a + B + C = 9. Find the values of a, B and C
It is known that the image with parabola y = x square + BX + C translates 3 units to the right, and then translates 2 units downward to obtain the parabola Y = (x-3) square + 1, find the value of B and C
The intersection coordinates of the image of the primary function y = kx-4 and the positive proportional function y = KX are (2, - 1) (1) write the expressions of these two functions ⑵ find the area of the triangle surrounded by the two images and the X axis (3) let the intersection of the straight line y = kx-4 and the coordinate axis be a and C respectively. If point B is on the straight line y = KX and the abscissa is four, calculate the area of the quadrilateral ABCO. (o is the coordinate origin)
The condition that (x + 1) under the root sign multiplied by (x-1) = under the root sign (x square - 1) holds
It is known that a > 0b > 0. Verify that a + B + 2 > = 2 (root a + root b) is urgent!
In triangle ABC, C = 60 degrees, a + B = 2 (root 3 + 1), C = 2, root 2, then a is equal to? In triangle ABC, C = 60 degrees, a + B = 2 (root 3 + 1), C = 2, root 2, then what is a equal to? 45 degrees or 75 degrees
Given that the image of the quadratic function y = x2 + BX + C passes through point a (C, 0) and is symmetrical about the straight line x = 2, the analytical formula of the quadratic function may be______ Just write a possible analytical expression
Let function f (x) = (square of X + ax + b) e to the power of X (x ∈ R). If a = 2 and B = - 2, find the extreme value of function f (x)
It is known that the quadratic function f (x) = ax ^ 2 + BX (a, B are constants and a ≠ 0) satisfies the following conditions: F (2) = 0 and the equation f (x) = x has two equal real roots Find the maximum and minimum values of the function on the interval (- 3,3)
Let the function f (x) = (x-a) ^ 2lnx and a belong to R (1). If x = e is the extreme point of y = f (x), find a (2) and find the value range of the real number a, so that for any x belonging to (0,3e), it is true that f (x) is less than or equal to 4E ^ 2 I can't understand the answer. The second question is, how do you get a 0
Let the function f (x) = X3 + bx2 + CX, G (x) = f (x) - F ′ (x). If G (x) is an odd function, find the values of B and C
Lim x → 0 e ^ x-e ^-x-2x / x-sinx limit
It is known that the image of function f (x) is symmetrical about the origin and passes through the origin. When x > 0, f (x) = x (x-1), the expression of F (x) is obtained
Should I use FM (x, y) or [f (x, y)] ^ m for the M-power of a function Can it be written like the former (M is the superscript)?
Why is it easy to ride a variable speed bicycle? According to the principle of energy conservation, the total work done from one place to another is the same, so why does riding a variable-speed bicycle feel labor-saving and less tired than riding an ordinary bicycle? What good post?
A balloon is filled with a certain mass of gas. When the temperature is constant, the pressure P in the balloon is an inverse proportional function of the balloon volume V, and the coordinates of a point are (1.5,64) 1. Write the analytical formula of inverse proportional function 2 when the volume of the balloon is 0.8m3, what is the air pressure in the balloon 3. When the pressure in the balloon is greater than 144 kPa, the balloon will explode. How many cubic meters should the volume of the balloon be?
Formula of motion law of free falling body: velocity time relationship displacement time relationship velocity displacement relationship Write the formula above
Together with Hawking to understand how much the universe has come out now Seek the truth
When an object is subjected to a force at a certain point, is it equivalent to the whole object being subjected to the same force? There are so many forces at each point, and there are countless at that point, will the resultant force become infinite?,
Questions about physical forces 1. A wooden block weighs 30n. Use 3N horizontal tension to make it move in a straight line at a uniform speed on the horizontal desktop. If you use 5N horizontal tension to make it move for a distance, the magnitude of friction f on the wooden block at this time is (excluding air resistance) A f=30N B f=5N C f=3N
Two physics problems The following statement about the pressure exerted by an object on the surface in contact with it is correct A pressure is always caused by the gravity of this object B the direction of the pressure is always perpendicular to the contact surface The magnitude of C pressure is always equal to the gravity of the object D pressure cannot be less than the gravity on this object Of the following statements about pressure and pressure, the correct one is A light and small objects cannot produce large pressure on the contact surface B the greater the pressure, the greater the pressure generated on the contact surface C. when the pressure is constant, the smaller the stress area, the greater the pressure generated by the butt contact surface D the greater the pressure of the object on the contact surface, the greater the pressure on the contact surface
What does the word "like" mean
The meaning of commercial bridge, Book Bridge and heart Bridge What's the nickname of lotus?
And the origin of the word? And the origin of the word?
What is the law of diminishing marginal returns
Considering the duopoly in the homogeneous product market, the demand function is y = 10-p / 2. The cost function of each enterprise is C = 10 + y (y + 1). Try to determine the Cournot equilibrium value
The even function f (x) defined on R is a subtractive function on [0, + ∞). If f (lgx) > F (1), the value range of X is () A. (1 10，10) B. (0，1 10)∪(1，+∞) C. (1 10，1) D. （0，1）∪（10，+∞）
If the function f (x) defined on R satisfies f (M + n) = f (m) + 2 [f (n)] ^ 2, where m and N belong to R, f (1) ≠ 0, then f (100) =?
Given that f (x) = (K-2) x2 + (K-3) x + 3 is an even function, the decreasing interval of F (x) is __
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