Cases in which constants can absorb terms

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SUMMARY

This discussion focuses on the conditions under which constants of integration can absorb terms and operations in mathematical expressions. Participants confirm that constants can be redefined as 'c' in various forms, such as -c=k and ac=k, but caution is advised when dealing with functions like 1/c and ln|c|, where the domain of 'c' must be defined. The consensus is that while many operations are permissible, specific cases, particularly involving division by zero or logarithmic functions, require careful consideration of the constant's value.

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Duderonimous
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Homework Statement



What are the cases in which constants of integration can and cannot absorb terms and operations and just be redefined as c.


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The Attempt at a Solution



As long as I keep redefining my constant of integration I can say

-c=k

ac=k where in any constant including zero

c^(a)=k

Can I say
1/c=k?
ln|c|=k?
sin(c)=k (or any trig function for that matter)

or for these last examples do I need to define the domain of c
 
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Hi Duderonimous! :smile:
Duderonimous said:
… or for these last examples do I need to define the domain of c

Yes.

But it's usually fairly obvious what you can do.

eg, if it's + 1/C, then obviously C = 0 is a problem that you'll have to deal with separately :wink:

(and you'll probably have to deal with C > 0 and C < 0 separately also)
 

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