Question: Why does Maple prefer to simplify with negative values?

Take the following expression:

x = -sin(alpha)*(L + (e + r)/tan(-90 + alpha/2))/2 + sin(alpha)*L

Why does Maple simplify it to:

instead of the following, like the other math software does it:

While Maple uses (-e -r) cot(-90 + alpha/2), the other software does (e + r) cot(90 - alpha/2), which I find easier to read.

It's not a big difference, but I find positive expressions easier to read. Is there a way to change this behaviour or to work around it?

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