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3. Compute the following integrals. Indicate what method you are using to integrate. If it's just a basic indefinite integral, write "basic indefinite integral". If you aren't sure what I mean by "basic indefinite integral", refer to the Basic Indefinite Integral table on the last page of the exam. If there are steps that I determine to be "unjustified", as in you did not show enough work to justify the next step your wrote down, I will give you a zero for that problem and possibly the entire exam. (a) (5 points) (et - +1/4) at (b) (6 points) 23dx (c) (6 points) re da