We know the maximum value of the function y = 4x / (x ^ 2 + 1) (x > 0). When we get the maximum value, what is x equal to

Y = 4x / (X & # 178; + 1) = 4 / [x + 1 / x], because x + 1 / X ≥ 2, then y ≤ 2, that is, the maximum value of Y is 2, then x = 1

RELATED INFORMATIONS

1. Known x
2. When x belongs to [0,3], the maximum value of y = minus x squared plus 4x minus 2 is
3. If the maximum value of the parabola y = - x2 + 4x + k is 3, then K=______ ．
4. Given 4x + 3Y = 2 (x > 0, Y > 0), then the maximum value of XY is equal to
5. How to do 4x squared (6-x squared) maximum
6. 4X - (the square of x) = 4
7. It is proved by matching method that no matter what the value of X is, the value of 12x-3x & # 178; - 13X = 0 is always less than 0
8. It is proved that the value of - 3x & # 178; + 12x + 6 is always less than 0 Topics such as questions, the process should be detailed
9. It is proved that: (1) the value of - (x square) + 6x-10 is always less than zero; (2) the value of 4 (x square) - 12x + 10 is always greater than zero
10. It is proved that the square of - x + 6x_ The constant value of 10 is less than zero
11. (2) 2 square of. 4x - 3xy = 2 square of 2Y - 2 (2 square of 2x - 5xy + 2 square of Y) (where x = 2, y = 3)
12. Given 2x-y = 2, then the value of the square of 5 (2x-y) - 4x + 2y-3 is?
13. (3) 2 square of. 4x - 3xy = 2 square of 2Y - 2 (2 square of 2x - 5xy + 2 square of Y) (where x = 2, y = 3)
14. If the square of x-4x + the square of Y + 2Y + 5 = 0, find the square of 2x-y
15. If the solution of the equation 5x-2m = - 4-x is between 2 and 10, what is the value range of the letter M
16. Solution equation: 4x + 9 / 8 = 9 / 8
17. 2.4x-x = 9.8
18. Solution equation: 147 × (4x-1) = 9.8
19. Solve equation 0.4x + (20-x) 0.8 = 10
20. The solution equation of X + 24 = 36