Will give brainliest for right answers please help 1. Which quadrant contains -11pi/18 and what is the reference angle?A) Quadrant 2, 7pi/18B) Quadrant 3, 7pi/18C) Quadrant 2, 11pi/18D) Quadrant 3, 11pi/182. Which of the following angles as a reference angle of 30°?A) 120°B) 150°C) 240°D) 315°3. Find tan, given that sin = -4/5 and cos > 0A) -5/3B) -4/3C) 3/5D) 5/44. Suppose x is an angle in standard position with cos > 0. In which quadrant(s) could the terminal side of x lie? Select all that apply.A) Quadrant 1B) Quadrant 2C) Quadrant 3D) Quadrant 45. Which of the following trigonometric ratios has a value that is undefined?A) cot 2B) sec 3pi/2C) tan piD) csc pi/2