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2. Solve the following indefinite integrals. a) f 3x + sec2 (5x) dx [1 point] b ) S ( x + 3 ) dx [2 points] c) S sin 3x . Cos4 3x dx [2 points] 2. (continued) Solve the following indefinite integrals. d) V4+x3 dx [2 points] e) S sin (30 - 75) de [2 poin