Is dx/dy equal to 1/(dy/dx) in Math Equations?

  • Thread starter madcap_
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In summary, the conversation discusses a problem involving equations and the use of wolfram to input answers. The problem involves finding the value of dx/dy and whether it is equal to 1/(dy/dx). The solution involves different types and the use of the proportion symbol, which is not readily available. There is also a discussion about the meaning of dV/dt and the use of alpha as a constant. Overall, the conversation highlights the importance of understanding mathematical symbols and simplifying equations.
  • #1
madcap_
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I was logged out when trying to post and lost everything :cry:


Without the background of the question cause I've lost all the equations and everything, i just needed to know if dx/dy = 1/(dy/dx)
 
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  • #2
Yes for the most part. There are some basic stipulations I believe, but I'll let the mathematicians point that out.
 
  • #3
Sure, it's true.
 
  • #4
The problem:
Youre given
jF9e7.png


Then it says:
kXRtI.png

Ilc6t.png

WluMz.png
My solution:
O7Xhe.png

First type:
n5gfO.png

Second type:
PAVfb.png

It seems to easy to be right.. Though it's part of a worded problem so I could be missing something
 
Last edited:
  • #5
madcap_ said:
The problem:
Youre given
jF9e7.png


Then it says:
kXRtI.png

Ilc6t.png

WluMz.png



My solution:
O7Xhe.png

First type:
n5gfO.png

Second type:
PAVfb.png




It seems to easy to be right.. Though it's part of a worded problem so I could be missing something

That basically looks ok to me. Is replacing alpha with c in the second part just a typo?
 
  • #6
Yeah, well I used wolfram to input my answers so it's readable and didn't have that symbol handy. It's the symbol for proportion right?
 
  • #7
madcap_ said:
Yeah, well I used wolfram to input my answers so it's readable and didn't have that symbol handy. It's the symbol for proportion right?

From what you said in defining dV/dt, it doesn't look like they mean it's 'proportional to'. They are just saying dV/dt is equal to -alpha*(h+R) where alpha is a constant. Not the 'proportional to' symbol. You could simplify (h+R)/(R^2-h^2) a bit.
 
  • #8
Thank you for clearing that up Dick.
 

FAQ: Is dx/dy equal to 1/(dy/dx) in Math Equations?

What is the meaning of dx/dy?

Dx/dy is a mathematical notation that represents the derivative of x with respect to y. It is used to describe the rate of change of a function with respect to its independent variable.

What is the meaning of dy/dx?

Dy/dx is a mathematical notation that represents the derivative of y with respect to x. It is also used to describe the rate of change of a function with respect to its independent variable.

Does dx/dy always equal 1/(dy/dx)?

No, dx/dy does not always equal 1/(dy/dx). This equality only holds true for certain types of functions, such as linear functions. For other functions, the two derivatives may have different values.

Why is the inverse of dx/dy equal to 1/(dy/dx)?

The inverse of a function represents the original function in reverse, meaning that the input and output values are swapped. In the case of derivatives, the inverse represents the inverse of the rate of change, which is the reciprocal. This is why 1/(dy/dx) is the inverse of dx/dy.

How is the equation dx/dy = 1/(dy/dx) used in calculus?

The equation dx/dy = 1/(dy/dx) is known as the inverse rule in calculus. It is used to find the derivative of an inverse function, by taking the reciprocal of the derivative of the original function. This rule is commonly used in solving optimization problems and finding the slope of a tangent line to a curve.

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