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# Questions tagged [simplifying-expressions]

Questions on manipulating complicated expressions and making them look simpler using Simplify, FullSimplify and Reduce.

230 questions with no upvoted or accepted answers
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63 views

### Real vs. complex series coefficients

I hope that this question is not a duplicate but I was unable to find it here (or somewhere else in the internet). For some reason, mathematica makes some expressions unnecessarily complicated. ...
90 views

### How to simplify an expression, subject to some gauge freedom

I can solve some PDE for $f$ in mathematica using Dsolve and produce an answer of the form $$f(x,y) \rightarrow C g(x,y)$$ where the $C$ term indicates some ...
97 views

### How to simplify the result of this integral

The solution of the following integral: Integrate[1/Sqrt[1 - Cos[x - x1]], {x, 0, Pi}, GenerateConditions -> False] is ...
49 views

### Equivalence between a simplified function and the original one

We have a complex function of Cosh[x] and Sinh[x] which became simplified by Mathematica. Moreover, at the last step, we ...
83 views

### Integrate$[\frac{\cos(x-y)\cos(5y)}{C+\cos(m-y)+B\cos(x-y)},y]$ results in massive, unusable expression. Can it be simplified?

I have to integrate a trigonometric expression that looks fairly straightforward, however, the expression I obtain after I evaluate the integral is massive and unusable. As the integrand is relatively ...
124 views

### How to simplify $x \coth(x) > 1$?

I have the inequality $x \coth(x) > 1$ which is correct for real arguments $x>0$. However, Mathematica does not seem to realize this: ...
373 views

### Simplifying solution of Solve function

I find the solution for the parameter I was searching for, by using this question. but the solution is so messy. I want to simplify it and used simplify. But I think there should be a way to simplify ...