Question: 2. Evaluate each integral. For definite integrals, use the change of variables to find new bounds. TT / 2 (a) sec?(20) tan(20) de (c )

2. Evaluate each integral. For definite integrals, use the change of variables to find new bounds. TT / 2 (a) sec?(20) tan(20) de (c ) sin r cos x dx o TT / 4 (b) sin? (3.) dac (d) sec rtan r dx o

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