Indefinite Integrals

Hello community, I'm new to Mathcad so I need your help

I try to calculate indefinite integral but it doesn't work, maybe I'm doing this wrong way?

25-Diamond I

Sometime Mathcad is a bit touchy and you have to be more precise:

As you can see the results differs in sign depending on which part you'd like to integrate.

And sometime it sufficient to tell Mathcad that a variable is real only:

23-Emerald IV

Hmmm. Mathcad 11 gives this:

and simplification...:

The same.

23-Emerald IV

Further exploration:

Quite a different result between Mupad and Maple!

Luc

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