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Directions: a. solve for 6 as a function of x. b. replace 6 in f(B) with your result in part (a), and c. simplify. x = 3 sin(6) ,f(9) = C0509) tan (9) Evaluate the integral. Evaluate the integral. i 1 d x x2 + 49 First complete the square, make the appropriate substitutions, and evaluate the integral. 1 d l1/p24-p+13 p