Question: 1-8 Evaluate the integral by making the given substitution. 1. ( cos 2x dx, u = 2x 2. xex dx, u = -x

1-8 Evaluate the integral by making the given substitution. 1. ( cos

1-8 Evaluate the integral by making the given substitution. 1. ( cos 2x dx, u = 2x 2. xex dx, u = -x

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