Pat made the substitution x – 4 = 5 sint in an integral and integrated to obtain f (x) dx = 12t – 2 sin t cos t + C. Complete Pat's integration by doing the back substitution to find the integral as a function of x. (х — 4) – 4) Cos sin (x – 4) -1 f (x) dx =| 12 sin + C

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