Although the integrals in each group below have similarities, they require different approaches. For each integral decide which of the following is needed: 1) nothing is needed. 2) algebra or a trig identity, 3) substitution, or 4) can't be done by the techniques in math 122b. Then evaluate each integral (except for the 4th type, of course). 1. A. f(x+1)dx 2. A. Je dr B. [x(x+1)* dx c. [x+1dx D. f(x+1)' de 4. A. B. [1-cos xdx c. J dx cos xsin x D. Jos de Vsin.x 3+e dx c. [(e+3) dx D. fln(e) dx 5. A. f tan xc B. [secx tan xdx C. ftanxcosxdx D. [(tan.x+1)* dx 3. A. [x(1-x) dx B. JI-x'de xdx 1-x D. f dx