3. 2 (cos x + sin x) dx is equal to: (A) -2 (B) -1 (C) 1 (D) N N (E) 2 4. dx is: x (A) N/ W + log. 2 (B) (E) N/ W + log . 1 N | - (C) 0 (D) 1+log. 2\f12 . S (2f (x) + 6) dx can be written as: MONASH Un Foundation. Year. A pathway to Monash University