1. Mathematics
2. Calculus and Analysis
3. Real Analysis
4. Integrals
5. 23536

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I am new to Mathematica and did derive the answer to the following but I can not get the information as to the steps taken to derive it.

I am using the trapezoidal and Simpson's rules to evaluate

S20 x2 dx ( the S should be the variant symbol)

Compare with exact value.

My answer is 8/3 but I can not get Mathematica to show me the steps it took to derive the answer. In my homework assignment I must show the steps plus it does not help me not to understand the process. Can you assist in A) filling in the steps and B) what I need to do to have Mathematica show me the steps