Why Can Derivatives Be Treated Like Fractions in Solving Equations?

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    Derivatives Fractions
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SUMMARY

Derivatives can be treated like fractions in solving equations due to their representation as differentials, specifically in the context of the Chain Rule and integration. For example, the equation ##\frac{du}{dx} = 2## simplifies to ##du = 2dx##, illustrating this fractional treatment. However, caution is advised as certain manipulations, such as squaring derivatives, are invalid. The discussion highlights the importance of understanding the foundational concepts of calculus, including limits and differentials, to correctly apply these principles.

PREREQUISITES
  • Understanding of basic calculus concepts, including derivatives and integrals.
  • Familiarity with the Chain Rule in calculus.
  • Knowledge of differentials and their notation, such as ##dy## and ##dx##.
  • Basic grasp of limit theory in calculus.
NEXT STEPS
  • Study the Chain Rule in detail, focusing on its applications in calculus.
  • Learn about differentials and their properties, particularly in the context of integration.
  • Explore the concept of hyperreal numbers and their implications for calculus.
  • Investigate common pitfalls in manipulating derivatives and differentials to avoid confusion.
USEFUL FOR

Students of calculus, educators teaching calculus concepts, and anyone interested in the foundational principles of mathematical analysis.

  • #31
Dale said:
In a calculus class I would teach only as much real analysis or sequences as is absolutely necessary to teach calculus. I think that is pretty minimal...
I think that would not be wise. Engineers and applied mathematicians would probably be hurt by that.
 
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  • #32
FactChecker said:
I think that would not be wise. Engineers and applied mathematicians would probably be hurt by that.
How?
 
  • #33
Dale said:
How?
Engineers and applied mathematicians need to be very experienced and comfortable with convergent sequences and series of all sorts.
 

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