I’m looking for a Mathematics specialist, someone who is great at calculus. Preferably in these two topics: Optimization and Antiderivatives. Note: This is for a test that will consists of 4 question

I’m looking for a Mathematics specialist, someone who is great at calculus. Preferably in these two topics: Optimization and Antiderivatives. 

Note: This is for a test that will consists of 4 questions only, but good full answers needed. Lastly, time limit is 5 minutes maximum per question, which is fair.