1. Evaluate the expression sin 180 + cos 360. A. 0 В. 1 C.2 D. 3 2. What trigonometric ratio is equal to tan 30? A. cot 60 B. sin 30 C. sec 60 D. csc 30 3. Which expressions will result to 3 when evaluated? A. sin 270 + csc 270 + sec 180 C. sin 0 + cos 90 + tan 180 B. sin 30 + cos 60 + tan 45 D. cot 45 + cos 360 + cos 0 4. The following expressions resulted to 0 when evaluated EXCEPT A. csc 30 – (sec 360 + cos 0) C. cos 30 – sec 60 tan 180 D. csc 270 B. (tan 180)(sin 45) 5. Evaluate: (csc 45 + sec 45) – (sin 30 + cos 60). A. 2/2 – 1 B. 1– 2/2 C. -2v2 – 1 D. –1 – 2/2