What is the derivative of F (x) = 1 / xlnx f(X)=1/(xlnx)

Hello!
When
When f (x) = (1 / x) * LNX,
F'(x)=(1-lnx)/x^2,
When
F (x) = 1 / (xlnx),
F'(x)=-(1+lnx)/(xlnx)^2,
Am I right?
thank you!

Addition and subtraction of fractions
Given that x is an integer and 2 / x + 3 + 2 / 3-x + 2x = 18 / x ^ 2-9 is an integer, find all x values that meet the conditions
=[2(x-3)-2(x+3)+(2x+18)]/(x^2-9)
How did you get there?

There seems to be something wrong

Finding the general solution of differential equation y to the nth power - 7Y '+ 10Y = 0

(1) When n = 1, the original equation is y-7y '+ 10Y = 0 = = > 7Y' - 11y = 0 = = > dy / y = 11dx / 7 = = > n  y  11x / 7 + ln  C  (C is an integral constant) = = = > y = CE ^ (11x / 7), that is, the general solution of the original equation is y = CE ^ (11x / 7); (2) when n ≠ 1, let z = y ^ (1-N), and substitute it into the original equation to get y ^ n-7y ^ NZ '/ (1-N) + 10z

26 representative words of the English alphabet

I'm not sure what you mean. Is it a word that starts with 26 letters?

Put 123456789 in the following formula to make it true
（）-（）=（）
（）+（）=（）
（）+（）=（）
I don't think it's right. Please take a look

There is no solution
The first formula a1-a2 = A3
So A1 = A2 + a3
There are three formulas
（）+（）=（）
（）+（）=（）
（）+（）=（）
Three formulas are added to get
（）+（）+（）+（）+（）+（）=（）+（）+（）
6 sums = 3 sums
But the sum is 45 and cannot be divided into two and a half
Namely:
6 sums = 3 sums
6 sum + 3 sum = 45
6 sum = 3 sum = 22.5
So there's no solution. Come on, it's impossible

In space rectangular coordinate system, given the equation of a point coordinate and a plane, how to find the distance from the point to the plane

Distance d = A / b. where a is the absolute value of the point after it is brought into the plane equation; B is the modulus of the normal vector of the plane equation
I hope the building owner will judge me as the best!

The sharp focus is on the y-axis, an asymptote is y = 3 / 4x, and the length of the real axis is 12

The focus is on the y-axis, and an asymptote is y = 3 / 4x, that is, 4Y = 3x
Let the equation be 16y ^ 2-9x ^ 2 = K. (k > 0)
That is y ^ 2 / (K / 16) - x ^ 2 / (K / 9) = 1
And 2A = 12, a = 6
That is, K / 16 = 6 ^ 2 = 576
So the equation is y ^ 2 / 36-x ^ 2 / 64 = 1

How to express the reciprocal with a sign

Whose reciprocal can be directly written as a fraction or fraction with its denominator, which is the same as the principle of adding negative sign to the opposite number, as if there is no special sign

Loga (x) = logb (y) = - 2 A + B = 2 find the value range of X + y

x=a^(-2)
y=b^(-2)
X + y with value simplification, do not understand hi me!

Quadratic inequalities ax square + BX + C > 0 and ax square + BX + C

The case of ax & sup2; + BX + C0 is just the opposite, and they can be transformed into each other
If you don't understand, please send a message~

What is the derivative of F (x) = 1 / xlnx f(X)=1/(xlnx)