Asap and clear please and thank you.

4. Find the average value of the function f (r) = sin 3x on the interval [0, $]. ( A) 1 (B) 2 (C) 2 (D) 6 (E) 1 ( F) 2 (G) 0 (H) 5. Use Simpson's Rule with n = 4 to approximate the integral _, 20 dr. (A) X (B) (0) $ (D) ; (E) 2- (F) 45 (G) 18 (H) . Find the value of the limit lim cos x - 1 I-+0+ (A) B) -2 (C) 0 (D) - (E) 2 ( F) 0 (G) (H) 4