1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
In-s [12.5K]
2 years ago
6

Find Dy/dX when x^y×y^x=1​

Mathematics
1 answer:
victus00 [196]2 years ago
7 0

by dy/dx, we'll be assuming that "y" is encapsulating a function, a function in terms of "x".

x^y\cdot y^x=1\implies \stackrel{\textit{\large product rule}}{\stackrel{\textit{chain rule}}{yx^{y-1}(1)}\cdot y^x+x^y\cdot \stackrel{\textit{chain rule}}{xy^{x-1}\cdot \frac{dy}{dx}}}~~ = ~~0 \\\\\\ y^{1+x}x^{y-1}+x^{y+1}y^{x-1}\cdot \cfrac{dy}{dx}=0\implies \cfrac{dy}{dx}=\cfrac{-y^{1+x}x^{y-1}}{x^{y+1}y^{x-1}} \\\\\\ \cfrac{dy}{dx}=-~~ y^{(1+x)-(x-1)}~~x^{(y-1)-(y+1)} \\\\\\ \cfrac{dy}{dx}=-~~ y^2x^{-2}\implies \cfrac{dy}{dx}=\cfrac{-y^2}{x^2}

You might be interested in
1/3·(−3x+4y−5z) help plz
Maksim231197 [3]

Answer:

To solve this we need to form 2 equations with only 2 variables.

x+4y-5z=-7

2x+y+5z=8

3x+5y=1

15x+10y+15z=35

6x+3y+15z=24

9x+7y=11

Now we need to use these to find x and y

9x+15y=3

9x+7y=11

8y=-8

y=-1

Therefore:

x=2

From this we can find that:

2(2)-1+5z=8

Therefore z=1

The answer is x=2, y=-1, z=1

7 0
3 years ago
Read 2 more answers
The sum of three numbers is 3. if the second number is subtracted from the sum of the first and third numbers, the result is 9.
Margaret [11]
Let the three numbers be x, y, and z.

If the sum of the three numbers is 3, then x+y+z=3

If subtracting the second number from the sum of the first and third numbers gives 9, then x+z-y=9

If subtracting the third number from the sum of the first and second numbers gives -5, then x+y-z=-5

This forms the system of equations:
[1] x+y+z=3
[2] x-y+z=9
[3] x+y-z=-5

First, to find y, let's take do [1]-[2]:
x+y+z=3
-x+y-z=-9
2y=-6
y=-3

Then, to find z, let's do [1]-[3]:
x+y+z=3
-x+-y+z=5
2z=8
z=4

Now that you have y and z, plug them into [1] to find x:
x+y+z=3
x-3+4=3
x=2

So the three numbers are 2,-3, and 4.


5 0
3 years ago
Which of the following statements is correct for the graph shown.
LuckyWell [14K]

Answer:

the answer is D).

Step-by-step explanation:

D). is the correct answer b/c the shape it and oval. Which means that during the vertical Line test, the points are going go through the line test like twice instead of only once.

5 0
3 years ago
Factor 35x + 28y im stuck on this and cannot get the answer
antoniya [11.8K]

Answer:

The answer is 7(5x+4y)

Step-by-step explanation:

Well you would have to first find what number is able to go in both numbers.

7 can go into 35 by 7·5

7 can also go into 28 by 7·4

So now we would simplify this by putting this in a distributive equation.

If you have any questions feel free to ask in the comments - Mark

4 0
3 years ago
Hihi , please help if able.
earnstyle [38]

Answer:

27

Step-by-step explanation:

3².2³/2² + 3².2²/2² = 27

7 0
3 years ago
Read 2 more answers
Other questions:
  • kendra and her horse completed the barrel racing in 15.839 seconds. what is the number rounded to the nearest tenth?
    14·1 answer
  • PLZ ANSWER VERY IMPORTANT GRADE
    9·1 answer
  • A is? 1 / 3 + a = 5 / 4
    12·2 answers
  • Which of the following equations represents an account that will double after approximately 6 years? y = 1(1.50)^x y = 2(1.17)^x
    11·2 answers
  • Combine the term : 5n-n
    12·1 answer
  • Can someone pls help me out
    13·1 answer
  • I will give brainliest
    15·2 answers
  • Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.
    12·2 answers
  • there are 30 students in the classand 24 of these students pass their english test.what percentage of these students pass their
    7·1 answer
  • What is the real distance from the<br> youth center to the school?
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!