Question: MAPLE is taking too long time

Hi,

I was trying to differentiate an equation with two random variables with respect to my decision variable. But it took 4-5 hrs still MAPLE could not evaluate nor show an error.

 Later I want to find q* from the FOC and wish to substitute it back into the equation. I will be grateful if someone please help me in doing both.

doubt_1.mw

Thanks in Advance

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