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Function f (x) = ln (a + 2 / x + 1) the image is symmetric about the origin, which a =?
The image is symmetric about the origin
That is, f (0) = 0
a+2/（0+1）=1
a+2=1
a=-1
I hope you can understand, you can understand, hope to adopt, agree
Given function f (x) = e ^ x-ln (x + m)
When M2
It is proved that: F (x) = ex ln (x + m), x + m > 0, x > - M. if f '(x) = E-1 / (x + m), Let f' (x) = 0, that is e = 1 / (x + m) > 0, the solution is: x = 1 / E-M. if - M0, f (x) is an increasing function. So: x = 1 / E-M is the minimum point of F (x), f (x) > = f (1 / E-M) = e (1 / E-M) - ln (1 / E) = 1-em + 1 = 2-em
Let f (x) = e ^ x-x-1. (I) if G (x) = - e ^ x + X + A + 1, X belongs to [- 1, LN]
The known function f (x) = e ^ x-x-1
(1) If the function g (x) = - e ^ x + X + A + 1, X belongs to [- 1, ln (4 / 3)] and has a unique zero point, find the value range of A;
(||) when x is greater than or equal to 0, f (x) is greater than or equal to (t-1) X
The volume formula of a sphere
Let the radius of the sphere be r, and the volume v = 4 / 3 * π R & # 179;
What is the volume formula of a sphere
The volume formula of a sphere is
V=4πR³/3
The volume formula of ball
Sphere volume v = 4 π R & # 179 / 3
The relationship between the volume of the ball and the area formula of the ball
V = (1 / 3) rs
The owner can verify it by himself
I want to know the circumference of a circle, the formula of area, the formula of volume of a sphere and the formula of percentage
Circle: perimeter d = 2 π R
Area s = π * r * r
Sphere: Area s = 4 π * r * r
Volume v = 4 π * r * r * r / 3
R is the radius
Find the volume and area formula of a sphere, thank
Volume = 4 / 3 × π × R & # 179; surface area = 4 π × R & # 178;
Calculation of several absolute values
(- 3 and 1 / 3) × (- 2 and 1 / 2) ÷ (- 5)
-2 square ÷ (- 0.5) square - | - 3 + (- 5) | × (- 0.125)
(4 / 3-7 / 6) square ÷ (1 / 3-1 / 2) square ÷ (- 6) square × (- 1 / 2) square
(- 3 and 1 / 3) × (- 2 and 1 / 2) ÷ (- 5)
=(-10/3)*(-5/2)*(-1/5)
=-5/3
=-1 and 2 / 3
-2 square ÷ (- 0.5) square - | - 3 + (- 5) | × (- 0.125)
=4*4-(|-8|*（-0.125）)
=16-1
=15
(4 / 3-7 / 6) square ÷ (1 / 3-1 / 2) square ÷ (- 6) square × (- 1 / 2) square
=1/36*36÷36*1/4
=1/144
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